diff --git a/app/lib/api/api_util.dart b/app/lib/api/api_util.dart
index 59988002..82ca3a7e 100644
--- a/app/lib/api/api_util.dart
+++ b/app/lib/api/api_util.dart
@@ -7,7 +7,6 @@ import 'package:logging/logging.dart';
 import 'package:nc_photos/account.dart';
 import 'package:nc_photos/entity/file_descriptor.dart';
 import 'package:nc_photos/entity/file_util.dart' as file_util;
-import 'package:nc_photos/entity/nc_album_item.dart';
 import 'package:nc_photos/exception.dart';
 import 'package:np_api/np_api.dart' hide NcAlbumItem;
 import 'package:to_string/to_string.dart';
@@ -46,6 +45,11 @@ String getFilePreviewUrlRelative(
   if (file_util.isTrash(account, file)) {
     // trashbin does not support preview.png endpoint
     url = "index.php/apps/files_trashbin/preview?fileId=${file.fdId}";
+  } else if (file_util.isNcAlbumFile(account, file)) {
+    // We can't use the generic file preview url because collaborative albums do
+    // not create a file share for photos not belonging to you, that means you
+    // can only access the file view the Photos API
+    url = "apps/photos/api/v1/preview/${file.fdId}?x=$width&y=$height";
   } else {
     url = "index.php/core/preview?fileId=${file.fdId}";
   }
@@ -77,18 +81,6 @@ String getFilePreviewUrlByFileId(
   return url;
 }
 
-/// Return the preview image URL for an item in [NcAlbum]. We can't use the
-/// generic file preview url because collaborative albums do not create a file
-/// share for photos not belonging to you, that means you can only access the
-/// file view the Photos API
-String getNcAlbumFilePreviewUrl(
-  Account account,
-  NcAlbumItem item, {
-  required int width,
-  required int height,
-}) =>
-    "${account.url}/apps/photos/api/v1/preview/${item.fileId}?x=$width&y=$height";
-
 String getFileUrl(Account account, FileDescriptor file) {
   return "${account.url}/${getFileUrlRelative(file)}";
 }
diff --git a/app/lib/entity/file_util.dart b/app/lib/entity/file_util.dart
index 3551803e..62ca345d 100644
--- a/app/lib/entity/file_util.dart
+++ b/app/lib/entity/file_util.dart
@@ -5,6 +5,7 @@ import 'package:nc_photos/entity/file.dart';
 import 'package:nc_photos/entity/file_descriptor.dart';
 import 'package:nc_photos/platform/k.dart' as platform_k;
 import 'package:nc_photos/remote_storage_util.dart' as remote_storage_util;
+import 'package:np_api/np_api.dart' as api;
 import 'package:np_common/ci_string.dart';
 import 'package:np_common/string_extension.dart';
 import 'package:path/path.dart' as path_lib;
@@ -38,6 +39,9 @@ bool isTrash(Account account, FileDescriptor file) =>
 bool isAlbumFile(Account account, FileDescriptor file) =>
     file.fdPath.startsWith(remote_storage_util.getRemoteAlbumsDir(account));
 
+bool isNcAlbumFile(Account account, FileDescriptor file) =>
+    file.fdPath.startsWith("${api.ApiPhotos.path}/");
+
 /// Return if [file] is located under [dir]
 ///
 /// Return false if [file] is [dir] itself (since it's not "under")
diff --git a/app/lib/entity/nc_album.dart b/app/lib/entity/nc_album.dart
index b54492de..8cc0ff0f 100644
--- a/app/lib/entity/nc_album.dart
+++ b/app/lib/entity/nc_album.dart
@@ -1,6 +1,7 @@
 import 'package:copy_with/copy_with.dart';
 import 'package:equatable/equatable.dart';
 import 'package:nc_photos/account.dart';
+import 'package:np_api/np_api.dart' as api;
 import 'package:np_common/ci_string.dart';
 import 'package:np_common/string_extension.dart';
 import 'package:np_common/type.dart';
@@ -27,7 +28,7 @@ class NcAlbum with EquatableMixin {
     required String name,
   }) {
     return NcAlbum(
-      path: "remote.php/dav/photos/${account.userId}/albums/$name",
+      path: "${api.ApiPhotos.path}/${account.userId}/albums/$name",
       lastPhoto: null,
       nbItems: 0,
       location: null,
diff --git a/app/lib/entity/nc_album_item.dart b/app/lib/entity/nc_album_item.dart
index 1ef40c93..a16053a9 100644
--- a/app/lib/entity/nc_album_item.dart
+++ b/app/lib/entity/nc_album_item.dart
@@ -1,4 +1,5 @@
 import 'package:nc_photos/entity/file.dart';
+import 'package:np_api/np_api.dart' as api;
 import 'package:np_common/string_extension.dart';
 import 'package:to_string/to_string.dart';
 
@@ -40,10 +41,10 @@ extension NcAlbumItemExtension on NcAlbumItem {
   /// WebDAV file path: remote.php/dav/photos/{userId}/albums/{album}/{strippedPath}.
   /// If this path points to the user's root album path, return "."
   String get strippedPath {
-    if (!path.startsWith("remote.php/dav/photos/")) {
+    if (!path.startsWith("${api.ApiPhotos.path}/")) {
       return path;
     }
-    var begin = "remote.php/dav/photos/".length;
+    var begin = "${api.ApiPhotos.path}/".length;
     begin = path.indexOf("/", begin);
     if (begin == -1) {
       return path;
diff --git a/app/lib/entity/sqlite/type_converter.dart b/app/lib/entity/sqlite/type_converter.dart
index 438f2ec1..0974ae1f 100644
--- a/app/lib/entity/sqlite/type_converter.dart
+++ b/app/lib/entity/sqlite/type_converter.dart
@@ -16,6 +16,7 @@ import 'package:nc_photos/entity/tag.dart';
 import 'package:nc_photos/iterable_extension.dart';
 import 'package:nc_photos/object_extension.dart';
 import 'package:nc_photos/or_null.dart';
+import 'package:np_api/np_api.dart' as api;
 import 'package:np_common/ci_string.dart';
 
 extension SqlTagListExtension on List<sql.Tag> {
@@ -259,7 +260,7 @@ class SqliteNcAlbumConverter {
     final json = ncAlbum.collaborators
         .run((obj) => (jsonDecode(obj) as List).cast<Map>());
     return NcAlbum(
-      path: "remote.php/dav/photos/$userId/albums/${ncAlbum.relativePath}",
+      path: "${api.ApiPhotos.path}/$userId/albums/${ncAlbum.relativePath}",
       lastPhoto: ncAlbum.lastPhoto,
       nbItems: ncAlbum.nbItems,
       location: ncAlbum.location,
@@ -291,7 +292,7 @@ class SqliteNcAlbumItemConverter {
           String userId, String albumRelativePath, sql.NcAlbumItem item) =>
       NcAlbumItem(
         path:
-            "remote.php/dav/photos/$userId/albums/$albumRelativePath/${item.relativePath}",
+            "${api.ApiPhotos.path}/$userId/albums/$albumRelativePath/${item.relativePath}",
         fileId: item.fileId,
         contentLength: item.contentLength,
         contentType: item.contentType,
diff --git a/app/lib/widget/collection_browser/type.dart b/app/lib/widget/collection_browser/type.dart
index bc166cea..0706dd2d 100644
--- a/app/lib/widget/collection_browser/type.dart
+++ b/app/lib/widget/collection_browser/type.dart
@@ -47,8 +47,7 @@ class _PhotoItem extends _FileItem {
     required super.original,
     required super.file,
     required this.account,
-  }) : _previewUrl = _getCollectionFilePreviewUrl(
-            account, original as CollectionFileItem);
+  }) : _previewUrl = NetworkRectThumbnail.imageUrlForFile(account, file);
 
   @override
   StaggeredTile get staggeredTile => const StaggeredTile.count(1, 1);
@@ -76,8 +75,7 @@ class _VideoItem extends _FileItem {
     required super.original,
     required super.file,
     required this.account,
-  }) : _previewUrl = _getCollectionFilePreviewUrl(
-            account, original as CollectionFileItem);
+  }) : _previewUrl = NetworkRectThumbnail.imageUrlForFile(account, file);
 
   @override
   StaggeredTile get staggeredTile => const StaggeredTile.count(1, 1);
@@ -176,13 +174,3 @@ class _DateItem extends _Item {
 
   final DateTime date;
 }
-
-String _getCollectionFilePreviewUrl(Account account, CollectionFileItem item) {
-  if (item is CollectionFileItemNcAlbumItemAdapter) {
-    return item.localFile == null
-        ? NetworkRectThumbnail.imageUrlForNcAlbumFile(account, item.item)
-        : NetworkRectThumbnail.imageUrlForFile(account, item.file);
-  } else {
-    return NetworkRectThumbnail.imageUrlForFile(account, item.file);
-  }
-}
diff --git a/app/lib/widget/network_thumbnail.dart b/app/lib/widget/network_thumbnail.dart
index 40ee9113..50e5a413 100644
--- a/app/lib/widget/network_thumbnail.dart
+++ b/app/lib/widget/network_thumbnail.dart
@@ -5,7 +5,6 @@ import 'package:nc_photos/account.dart';
 import 'package:nc_photos/api/api_util.dart' as api_util;
 import 'package:nc_photos/cache_manager_util.dart';
 import 'package:nc_photos/entity/file_descriptor.dart';
-import 'package:nc_photos/entity/nc_album_item.dart';
 import 'package:nc_photos/k.dart' as k;
 import 'package:nc_photos/np_api_util.dart';
 
@@ -37,14 +36,6 @@ class NetworkRectThumbnail extends StatelessWidget {
         isKeepAspectRatio: true,
       );
 
-  static String imageUrlForNcAlbumFile(Account account, NcAlbumItem item) =>
-      api_util.getNcAlbumFilePreviewUrl(
-        account,
-        item,
-        width: k.photoThumbSize,
-        height: k.photoThumbSize,
-      );
-
   @override
   Widget build(BuildContext context) {
     final child = FittedBox(
diff --git a/np_api/lib/src/photos_api.dart b/np_api/lib/src/photos_api.dart
index f2bd51b8..def78327 100644
--- a/np_api/lib/src/photos_api.dart
+++ b/np_api/lib/src/photos_api.dart
@@ -6,6 +6,8 @@ class ApiPhotos {
   ApiPhotosAlbums albums() => ApiPhotosAlbums(this);
   ApiPhotosAlbum album(String name) => ApiPhotosAlbum(this, name);
 
+  static String get path => "remote.php/dav/photos";
+
   final Api api;
   final String userId;
 }
@@ -22,7 +24,7 @@ class ApiPhotosAlbums {
     dateRange,
     collaborators,
   }) async {
-    final endpoint = "remote.php/dav/photos/${photos.userId}/albums";
+    final endpoint = "${ApiPhotos.path}/${photos.userId}/albums";
     try {
       if (lastPhoto == null &&
           nbItems == null &&
@@ -96,7 +98,7 @@ class ApiPhotosAlbum {
     fileid,
     permissions,
   }) async {
-    final endpoint = "remote.php/dav/photos/${photos.userId}/albums/$albumId";
+    final endpoint = "${ApiPhotos.path}/${photos.userId}/albums/$albumId";
     try {
       final bool hasDavNs = (getcontentlength != null ||
           getcontenttype != null ||
@@ -178,7 +180,7 @@ class ApiPhotosAlbum {
 
   Future<Response> mkcol() async {
     try {
-      final endpoint = "remote.php/dav/photos/${photos.userId}/albums/$albumId";
+      final endpoint = "${ApiPhotos.path}/${photos.userId}/albums/$albumId";
       return await api.request("MKCOL", endpoint);
     } catch (e) {
       _log.severe("[mkcol] Failed while MKCOL", e);
@@ -188,7 +190,7 @@ class ApiPhotosAlbum {
 
   Future<Response> delete() async {
     try {
-      final endpoint = "remote.php/dav/photos/${photos.userId}/albums/$albumId";
+      final endpoint = "${ApiPhotos.path}/${photos.userId}/albums/$albumId";
       return await api.request("DELETE", endpoint);
     } catch (e) {
       _log.severe("[delete] Failed while DELETE", e);