1 files changed, 1 insertions, 1 deletions
diff --git a/update b/update
index fe24e3d..4a8fc73 100644
--- a/update
+++ b/update
@@ -3,7 +3,7 @@
 refname="$1"
 sha_old="$2"
 sha_new="$3"
-base_refname=printf "${refname}" | base64
+base_refname=$(printf "${refname}" | base64)
 target_file="/tmp/git_update_${base_refname}_test"
 
 date > "${target_file}"