diff --git a/android/src/main/java/com/ReactNativeBlobUtil/ReactNativeBlobUtilReq.java b/android/src/main/java/com/ReactNativeBlobUtil/ReactNativeBlobUtilReq.java
index e30d3d9df..1002d3497 100644
--- a/android/src/main/java/com/ReactNativeBlobUtil/ReactNativeBlobUtilReq.java
+++ b/android/src/main/java/com/ReactNativeBlobUtil/ReactNativeBlobUtilReq.java
@@ -171,6 +171,7 @@ public static void cancelTask(String taskId) {
     private void invoke_callback(Object... args) {
         if (this.callbackfired) return;
         this.callback.invoke(args);
+        this.callbackfired = true;
     }
 
     private final int QUERY = 1314;