diff --git a/action.yml b/action.yml
index 68685bd7..2f653d66 100644
--- a/action.yml
+++ b/action.yml
@@ -102,17 +102,17 @@ runs:
           do
             echo "Checking for file changes: \"${path}\"..."
 
-            ADDED_FILES+=$(git diff --diff-filter=A --name-only "$HEAD_SHA" | grep -E "(${path})" || true)
-            COPIED_FILES+=$(git diff --diff-filter=C --name-only "$HEAD_SHA" | grep -E "(${path})" || true)
-            DELETED_FILES+=$(git diff --diff-filter=D --name-only "$HEAD_SHA" | grep -E "(${path})" || true)
-            MODIFIED_FILES+=$(git diff --diff-filter=M --name-only "$HEAD_SHA" | grep -E "(${path})" || true)
-            RENAMED_FILES+=$(git diff --diff-filter=R --name-only "$HEAD_SHA" | grep -E "(${path})" || true)
-            CHANGED_FILES+=$(git diff --diff-filter=T --name-only "$HEAD_SHA" | grep -E "(${path})" || true)
-            UNMERGED_FILES+=$(git diff --diff-filter=U --name-only "$HEAD_SHA" | grep -E "(${path})" || true)
-            UNKNOWN_FILES+=$(git diff --diff-filter=X --name-only "$HEAD_SHA" | grep -E "(${path})" || true)
-            ALL_CHANGED+=$(git diff --diff-filter='*ACDMRTUX' --name-only "$HEAD_SHA" | grep -E "(${path})" || true)
-            ALL_MODIFIED_FILES+=$(git diff --diff-filter='ACM' --name-only "$HEAD_SHA" | grep -E "(${path})" || true)
-
+            ADDED_FILES+="$(git diff --diff-filter=A --name-only "$HEAD_SHA" | grep -E "(${path})" || true)${{ inputs.separator }}"
+            COPIED_FILES+="$(git diff --diff-filter=C --name-only "$HEAD_SHA" | grep -E "(${path})" || true)${{ inputs.separator }}"
+            DELETED_FILES+="$(git diff --diff-filter=D --name-only "$HEAD_SHA" | grep -E "(${path})" || true)${{ inputs.separator }}"
+            MODIFIED_FILES+="$(git diff --diff-filter=M --name-only "$HEAD_SHA" | grep -E "(${path})" || true)${{ inputs.separator }}"
+            RENAMED_FILES+="$(git diff --diff-filter=R --name-only "$HEAD_SHA" | grep -E "(${path})" || true)${{ inputs.separator }}"
+            CHANGED_FILES+="$(git diff --diff-filter=T --name-only "$HEAD_SHA" | grep -E "(${path})" || true)${{ inputs.separator }}"
+            UNMERGED_FILES+="$(git diff --diff-filter=U --name-only "$HEAD_SHA" | grep -E "(${path})" || true)${{ inputs.separator }}"
+            UNKNOWN_FILES+="$(git diff --diff-filter=X --name-only "$HEAD_SHA" | grep -E "(${path})" || true)${{ inputs.separator }}"
+            ALL_CHANGED+="$(git diff --diff-filter='*ACDMRTUX' --name-only "$HEAD_SHA" | grep -E "(${path})" || true)${{ inputs.separator }}"
+            ALL_MODIFIED_FILES+="$(git diff --diff-filter='ACM' --name-only "$HEAD_SHA" | grep -E "(${path})" || true)${{ inputs.separator }}"
+"
           done
 
           echo "::set-output name=added_files::$ADDED"