diff --git a/Annotations.java b/Annotations.java
index 778f71298..d1e6fd652 100644
--- a/Annotations.java
+++ b/Annotations.java
@@ -24,6 +24,7 @@ public class Annotations {
             AgoraRtcAppType.APICLOUD,
             AgoraRtcAppType.REACTNATIVE,
     })
+    @Retention(RetentionPolicy.SOURCE)
     public @interface AgoraRtcAppType {
         int NATIVE = 0;
         int COCOS = 1;