diff --git a/scm-plugins/scm-git-plugin/src/main/js/GitConfigurationForm.tsx b/scm-plugins/scm-git-plugin/src/main/js/GitConfigurationForm.tsx
index f7a15b54b4..cec3f1b85f 100644
--- a/scm-plugins/scm-git-plugin/src/main/js/GitConfigurationForm.tsx
+++ b/scm-plugins/scm-git-plugin/src/main/js/GitConfigurationForm.tsx
@@ -79,7 +79,7 @@ class GitConfigurationForm extends React.Component<Props, State> {
   };
 
   isValidDefaultBranch = () => {
-    return validator.isNameValid(this.state.defaultBranch);
+    return validator.isBranchValid(this.state.defaultBranch);
   };
 
   render() {