diff --git a/core/src/main/java/jenkins/MetaLocaleDrivenResourceProvider.java b/core/src/main/java/jenkins/MetaLocaleDrivenResourceProvider.java
index cd69a07a901e7a6357e5909fa494ad86fec7977d..4382eec80f72e29c0410c4ca472658f88f826258 100644
--- a/core/src/main/java/jenkins/MetaLocaleDrivenResourceProvider.java
+++ b/core/src/main/java/jenkins/MetaLocaleDrivenResourceProvider.java
@@ -25,10 +25,13 @@ package jenkins;
 
 import hudson.ExtensionList;
 import org.kohsuke.MetaInfServices;
+import org.kohsuke.accmod.Restricted;
+import org.kohsuke.accmod.restrictions.NoExternalUse;
 import org.kohsuke.stapler.LocaleDrivenResourceProvider;
 
 import java.net.URL;
 
+@Restricted(NoExternalUse.class)
 @MetaInfServices
 public final class MetaLocaleDrivenResourceProvider extends LocaleDrivenResourceProvider {
     @Override