diff --git a/src/main/java/org/redkale/service/RetLabel.java b/src/main/java/org/redkale/service/RetLabel.java
index 2017aefdb..f447b4349 100644
--- a/src/main/java/org/redkale/service/RetLabel.java
+++ b/src/main/java/org/redkale/service/RetLabel.java
@@ -49,7 +49,7 @@ public @interface RetLabel {
     public static interface RetInfoTransfer extends BiFunction<Integer, String, String> {}
 
     public abstract static class RetLoader {
-        
+
         private RetLoader() {
             throw new IllegalStateException();
         }