diff --git a/.github/workflows/archive-validation.yml b/.github/workflows/archive-validation.yml
index 5235e852..ceba2039 100644
--- a/.github/workflows/archive-validation.yml
+++ b/.github/workflows/archive-validation.yml
@@ -27,7 +27,8 @@ jobs:
 
       - id: number-of-new-files
         run: |
-          number_of_new_files=$(for file in $(bash .ci/github/files_between_commits.sh $GITHUB_REF $GITHUB_SHA);
+          bash .ci/github/files_between_commits.sh $GITHUB_REF $GITHUB_SHA
+          number_of_new_files=$(for file in $(bash .ci/github/files_between_commits.sh $GITHUB_REF $GITHUB_SHA)
           do
             dirname $file;
           done | sort | uniq | grep '^\.$' | wc -l)