diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 0902c6ef..7fcb6ba7 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -115,6 +115,7 @@ jobs:
           echo "${ARC_VERSION}" > "files/p1/ARC-VERSION"
           echo "ARC_VERSION=${ARC_VERSION}" >> $GITHUB_ENV
           echo "${ARC_BRANCH}" > "files/p1/ARC-BRANCH"
+          echo "ARC_BRANCH=${ARC_BRANCH}" >> $GITHUB_ENV
 
           echo "Create Arc Image"
           IMAGE_FILE="arc.img"