diff --git a/.github/workflows/filename-check.yml b/.github/workflows/filename-check.yml
index 251da559..ab6c0839 100644
--- a/.github/workflows/filename-check.yml
+++ b/.github/workflows/filename-check.yml
@@ -14,7 +14,7 @@ jobs:
     - name: Check for capital letters in filenames in 'doc/manual'
       run: |
         echo "Hello"
-#        files_with_caps=$(find doc/manual -type f | grep '[A-Z]')
+        files_with_caps=$(find doc/manual -type f | grep '[A-Z]')
 #        if [ ! -z "$files_with_caps" ]; then
 #          echo "Files with capital letters:"
 #          echo "$files_with_caps"