diff --git a/bin/release_utils.sh b/bin/release_utils.sh
index ecce05a3b6..9f7e9c784b 100644
--- a/bin/release_utils.sh
+++ b/bin/release_utils.sh
@@ -37,7 +37,7 @@ ohai() {
 }
 
 warn() {
-  printf "${tty_red}Warning${tty_reset}: %s\n"
+  printf "${tty_red}Warning${tty_reset}: %s\n" "$1"
 }
 
 abort() {