diff --git a/.github/workflows/i18n-automerge.yml b/.github/workflows/i18n-automerge.yml
index adb3d10b..5d60d5d4 100644
--- a/.github/workflows/i18n-automerge.yml
+++ b/.github/workflows/i18n-automerge.yml
@@ -15,6 +15,8 @@ jobs:
     steps:
       - name: Checkout code
         uses: actions/checkout@v3
+        with:
+          fetch-depth: 0
 
       - name: Count lines changed
         run: |
@@ -25,6 +27,12 @@ jobs:
           echo "Base SHA: $BASE_SHA"
           echo "Head SHA: $HEAD_SHA"
 
+          # Check if the commits exist
+          if ! git cat-file -e $BASE_SHA || ! git cat-file -e $HEAD_SHA; then
+            echo "ERROR: One or both of the commits are not available."
+            exit 1
+          fi
+
           # Calculate the total number of lines changed (added, removed, or modified)
           LINES_CHANGED=$(git diff --shortstat $BASE_SHA $HEAD_SHA | awk '{print $4 + $6 + $8}')