diff --git a/src/main/java/com/example/filter/Reverse.java b/src/main/java/com/example/filter/Reverse.java
index b096bc3..2c8e371 100644
--- a/src/main/java/com/example/filter/Reverse.java
+++ b/src/main/java/com/example/filter/Reverse.java
@@ -28,15 +28,17 @@ protected void prepare() {
      */
     @Override
     protected Map filter(final Map event) {
-
+        boolean success = false;
         for (String field : this.fields) {
             if (!event.containsKey(field)) {
                 continue;
             }
+            success = true;
             String oldValue = event.get(field).toString();
             String newValue = new StringBuilder(oldValue).reverse().toString();
             event.put(field, newValue);
         }
+        postProcess(event, success);
         return event;
     }
 }