diff --git a/plugins/de.fraunhofer.ipa.ros.xtext/src/de/fraunhofer/ipa/ros/RosQNP.xtend b/plugins/de.fraunhofer.ipa.ros.xtext/src/de/fraunhofer/ipa/ros/RosQNP.xtend
index 0deb523e..37d69036 100644
--- a/plugins/de.fraunhofer.ipa.ros.xtext/src/de/fraunhofer/ipa/ros/RosQNP.xtend
+++ b/plugins/de.fraunhofer.ipa.ros.xtext/src/de/fraunhofer/ipa/ros/RosQNP.xtend
@@ -15,6 +15,7 @@ import ros.ServiceClient
 import ros.ActionServer
 import ros.ActionClient
 import ros.NamespacedElement
+import ros.Parameter
 
 class RosQNP extends DefaultDeclarativeQualifiedNameProvider{
 
@@ -76,6 +77,12 @@ class RosQNP extends DefaultDeclarativeQualifiedNameProvider{
       return getConverter().toQualifiedName(art.name + "::" + interface.name);
     }
 
+    if (obj instanceof Parameter) {
+      val interface = obj as Parameter
+      val art = obj.eContainer.eContainer as Artifact
+      return getConverter().toQualifiedName(art.name + "::" + interface.name);
+    }
+
     return super.qualifiedName(obj);
     }
 }