diff --git a/source/RobotAPI/components/units/RobotUnit/SensorValues/SensorValue1DoFActuator.h b/source/RobotAPI/components/units/RobotUnit/SensorValues/SensorValue1DoFActuator.h
index fc8b362bcd2c705f163387fa4f41884d9d92ac92..c5ca4ead4deb70d4d507186a0a16d43dfb81ac51 100644
--- a/source/RobotAPI/components/units/RobotUnit/SensorValues/SensorValue1DoFActuator.h
+++ b/source/RobotAPI/components/units/RobotUnit/SensorValues/SensorValue1DoFActuator.h
@@ -119,6 +119,7 @@ namespace armarx
             svi.addBaseClass<SensorValue1DoFActuatorVelocity>();
             svi.addBaseClass<SensorValue1DoFActuatorAcceleration>();
             svi.addBaseClass<SensorValue1DoFActuatorTorque>();
+            svi.addBaseClass<SensorValue1DoFGravityTorque>();
             return svi;
         }
     };