diff --git a/src/android/java/com/tencent/trtc/CordovaEventKit.java b/src/android/java/com/tencent/trtc/CordovaEventKit.java
index 5e7ef16..6eaa30b 100644
--- a/src/android/java/com/tencent/trtc/CordovaEventKit.java
+++ b/src/android/java/com/tencent/trtc/CordovaEventKit.java
@@ -21,7 +21,7 @@ public class CordovaEventKit {
 
 
     public void fireEvent(String event, JSONArray obj){
-        this.fireEvent(event,obj == null ? null  obj.toString());
+        this.fireEvent(event,obj == null ? null : obj.toString());
     }
 
     public void fireEvent(String event, JSONObject obj){