added missing property

source/RobotAPI/components/units/HeadIKUnit.h

@@ -48,6 +48,7 @@ namespace armarx
         {
             defineRequiredProperty<std::string>("KinematicUnitName", "Name of the KinematicUnit Proxy");
             defineOptionalProperty<std::string>("RobotStateTopicName", "RobotState", "Name of the RobotComponent State topic.");
+            defineOptionalProperty<std::string>("HeadIKUnitTopic", "HeadIKUnitTopicName",  "Name of the HeadIKUnit Topic");
             defineOptionalProperty<int>("CycleTime", 30, "Cycle time of the tcp control in ms");
         }
     };