diff --git a/.gitea/workflows/mvs_job.yaml b/.gitea/workflows/mvs_job.yaml
index f50eb56..9ddb885 100644
--- a/.gitea/workflows/mvs_job.yaml
+++ b/.gitea/workflows/mvs_job.yaml
@@ -15,14 +15,18 @@ jobs:
       - name: Find changed source files
         id: files
         run: |
-          # List changed .c or .bas files (last commit)
-          CHANGED_FILES=$(git diff --name-only HEAD~1 | grep -E '\.(c|bas)$' | head -1)
+          # Try to list changed .c or .bas files from last commit
+          CHANGED_FILES=$(git diff --name-only HEAD~1 -- '*.c' '*.bas' 2>/dev/null | head -1)
+          # Fallback to all .c/.bas files if no previous commit
           if [ -z "$CHANGED_FILES" ]; then
-            echo "No C/BAS files changed; skipping."
+            CHANGED_FILES=$(git ls-files '*.c' '*.bas' | head -1)
+          fi
+          if [ -z "$CHANGED_FILES" ]; then
+            echo "No C/BAS files found; skipping."
             exit 0
           fi
           echo "file=$CHANGED_FILES" >> $GITHUB_OUTPUT
-          echo "member=$(basename $CHANGED_FILES .c)" >> $GITHUB_OUTPUT  # Or .bas
+          echo "member=$(basename "$CHANGED_FILES" .c)" >> $GITHUB_OUTPUT  # Or .bas
 
       - name: Upload to PDS and Submit JCL
         if: steps.files.outputs.file != ''
@@ -33,5 +37,4 @@ jobs:
 
       - name: Report Status
         run: |
-          echo "Upload/Compile complete! Check TK5 JES for JOB ${{ steps.files.outputs.member }} output."
-
+          echo "Upload/Compile complete! Check TK5 JES for JOB ${{ steps.files.outputs.member }} output."
\ No newline at end of file