diff --git a/ci_container/build.sh b/ci_container/build.sh
index 345c44d..40a8710 100755
--- a/ci_container/build.sh
+++ b/ci_container/build.sh
@@ -63,7 +63,7 @@ for i in "${images[@]}"; do
 		--from "${basectr}" \
 		--format docker \
 		--iidfile "${IIDFILE}" \
-		--tag "${IMAGETAG}"
+		--tag "${IMAGETAG}" \
 		--build-arg BUILDTIMESTAMP="`date --iso-8601=seconds`"
 
 	if [ "${REGISTRY}" != "none" ]; then