diff --git a/scripts/prepare_release.sh b/scripts/prepare_release.sh
index 06aef4d0a8..5fe9059474 100755
--- a/scripts/prepare_release.sh
+++ b/scripts/prepare_release.sh
@@ -255,7 +255,7 @@ main() {
 	read_command_line_arguments "$@"
 	checkout_base_branch
 
-	if [[ $is_subsequent_release ]]; then
+	if [[ "$is_subsequent_release" -eq 1 ]]; then
 		create_build_branch
 	elif [[ $is_hotfix ]]; then
 		create_build_branch