diff --git a/src/main/java/net/floodlightcontroller/util/FlowEntryId.java b/src/main/java/net/floodlightcontroller/util/FlowEntryId.java
index 0874bdb..d322f5e 100644
--- a/src/main/java/net/floodlightcontroller/util/FlowEntryId.java
+++ b/src/main/java/net/floodlightcontroller/util/FlowEntryId.java
@@ -63,6 +63,6 @@
      */
     @Override
     public String toString() {
-	return Long.toHexString(this.value);
+	return "0x" + Long.toHexString(this.value);
     }
 }