diff --git a/src/main/java/org/openflow/protocol/action/OFActionVendor.java b/src/main/java/org/openflow/protocol/action/OFActionVendor.java
index c8f3cd1ec94e84a31948c9bac0af305b5c0d7763..5860ef1160ae43fe3606a582c8e7d7ae842820eb 100644
--- a/src/main/java/org/openflow/protocol/action/OFActionVendor.java
+++ b/src/main/java/org/openflow/protocol/action/OFActionVendor.java
@@ -86,4 +86,9 @@ public abstract class OFActionVendor extends OFAction {
         }
         return true;
     }
+
+    @Override
+    public String toString() {
+        return super.toString() + "; vendor=" + vendor;
+    }
 }