diff --git a/src/main/java/com/cloudbees/jenkins/GitHubRepositoryNameContributor.java b/src/main/java/com/cloudbees/jenkins/GitHubRepositoryNameContributor.java
index f6a44c10e..1fa73ac8b 100644
--- a/src/main/java/com/cloudbees/jenkins/GitHubRepositoryNameContributor.java
+++ b/src/main/java/com/cloudbees/jenkins/GitHubRepositoryNameContributor.java
@@ -90,7 +90,7 @@ public void parseAssociatedNames(AbstractProject<?, ?> job, Collection<GitHubRep
     @Extension(optional=true)
     public static class FromMultiSCM extends AbstractFromSCMImpl {
         // make this class fail to load if MultiSCM is not present
-        private MultiSCM signature() { return null; }
+        public FromMultiSCM() { MultiSCM.class.toString(); }
 
         @Override
         public void parseAssociatedNames(AbstractProject<?, ?> job, Collection<GitHubRepositoryName> result) {