diff --git a/.gitea/workflows/build.yml b/.gitea/workflows/build.yml
index 77d2cff..b68e1fe 100644
--- a/.gitea/workflows/build.yml
+++ b/.gitea/workflows/build.yml
@@ -24,7 +24,7 @@ jobs:
           echo "branch=${GITHUB_HEAD_REF:-${GITHUB_REF#refs/heads/}}"
           tag=${GITHUB_HEAD_REF:-${GITHUB_REF#refs/heads/}}
           tag=${tag//\//-}
-          tag_num=${git log --oneline | wc -l}
+          tag_num=$(git log --oneline | wc -l)
           echo "tag_num=$tag_num"          
 
           if [[ "$tag" == "main" ]]; then