diff --git a/.github/workflows/screenshot-comparison-comment.yml b/.github/workflows/screenshot-comparison-comment.yml
index 9a6447fe5..b2f9076f2 100644
--- a/.github/workflows/screenshot-comparison-comment.yml
+++ b/.github/workflows/screenshot-comparison-comment.yml
@@ -79,7 +79,7 @@ jobs:
           BRANCH_NAME: companion_${{ github.event.workflow_run.head_branch }}
         run: |
           # Find all the files ending with _compare.png
-          files_to_add=$(find . -type f -name "*_compare.png")
+          mapfile -t files_to_add < <(find . -type f -name "*_compare.png")
           
           # Check for invalid file names and add only valid ones
           for file in $files_to_add; do