diff --git a/src/main/resources/generator/server/springboot/mvc/security/oauth2/core/main/infrastructure/primary/CustomClaimConverter.java.mustache b/src/main/resources/generator/server/springboot/mvc/security/oauth2/core/main/infrastructure/primary/CustomClaimConverter.java.mustache
index 6c043264ad9..e0423284140 100644
--- a/src/main/resources/generator/server/springboot/mvc/security/oauth2/core/main/infrastructure/primary/CustomClaimConverter.java.mustache
+++ b/src/main/resources/generator/server/springboot/mvc/security/oauth2/core/main/infrastructure/primary/CustomClaimConverter.java.mustache
@@ -104,8 +104,8 @@ class CustomClaimConverter implements Converter<Map<String, Object>, Map<String,
     CLAIM_APPENDERS.stream().forEach(appender -> appender.append(claim, user));
   }
 
-  private static interface ClaimAppender {
-    public void append(Map<String, Object> claim, ObjectNode user);
+  private interface ClaimAppender {
+    void append(Map<String, Object> claim, ObjectNode user);
   }
 
   private static class StandardClaimAppender implements ClaimAppender {