diff --git a/src/video_core/engines/maxwell_3d.h b/src/video_core/engines/maxwell_3d.h
index ffed42a29..335383955 100644
--- a/src/video_core/engines/maxwell_3d.h
+++ b/src/video_core/engines/maxwell_3d.h
@@ -242,6 +242,7 @@ public:
                     return 4;
                 default:
                     UNREACHABLE();
+                    return 1;
                 }
             }