diff --git a/build/ca-bundle-checker.sh b/build/ca-bundle-checker.sh
index 4497642fd9..4d11abc2c7 100755
--- a/build/ca-bundle-checker.sh
+++ b/build/ca-bundle-checker.sh
@@ -1,8 +1,6 @@
 #!/usr/bin/env bash
 
-printenv
-
-if [[ -n ${DRONE_COMMIT_REFSPEC} &&  ! ${DRONE_COMMIT_REFSPEC} =~ version(\/noid)?\/([0-9.]+) ]]; then
+if [[ -n ${DRONE_SOURCE_BRANCH} &&  ! ${DRONE_SOURCE_BRANCH} =~ version(\/noid)?\/([0-9.]+) ]]; then
     echo "Skip CA bundle check"
     exit 0
 fi