diff --git a/.github/workflows/CICD.yml b/.github/workflows/CICD.yml
index 4798f731d..6b379e2d0 100644
--- a/.github/workflows/CICD.yml
+++ b/.github/workflows/CICD.yml
@@ -163,9 +163,11 @@ jobs:
         echo set-output name=EXE_suffix::${EXE_suffix}
         echo ::set-output name=EXE_suffix::${EXE_suffix}
         # parse commit reference info
+        echo GITHUB_REF=${GITHUB_REF}
+        echo GITHUB_SHA=${GITHUB_SHA}
         REF_NAME=${GITHUB_REF#refs/*/}
-        unset REF_BRANCH ; case '${GITHUB_REF}' in refs/heads/*) REF_BRANCH=${GITHUB_REF#refs/heads/} ;; esac;
-        unset REF_TAG ; case '${GITHUB_REF}' in refs/tags/*) REF_TAG=${GITHUB_REF#refs/tags/} ;; esac;
+        unset REF_BRANCH ; case "${GITHUB_REF}" in refs/heads/*) REF_BRANCH=${GITHUB_REF#refs/heads/} ;; esac;
+        unset REF_TAG ; case "${GITHUB_REF}" in refs/tags/*) REF_TAG=${GITHUB_REF#refs/tags/} ;; esac;
         REF_SHAS=${GITHUB_SHA:0:8}
         echo set-output name=REF_NAME::${REF_NAME}
         echo set-output name=REF_BRANCH::${REF_BRANCH}