diff --git a/.github/workflows/checkpatch.yml b/.github/workflows/checkpatch.yml
index c38388680..080327d6c 100644
--- a/.github/workflows/checkpatch.yml
+++ b/.github/workflows/checkpatch.yml
@@ -39,4 +39,4 @@ jobs:
           )
           ignore_str=${ignore[*]}
 
-          git format-patch -1 --stdout | ./checkpatch.pl --no-tree --show-types --ignore=$(echo "${ignore_str// /,}") -
+          git format-patch -1 --stdout | ./checkpatch.pl --no-tree --show-types --ignore="${ignore_str// /,}" -