diff --git a/source/RobotAPI/components/NaturalIKTest/NaturalIKTest.cpp b/source/RobotAPI/components/NaturalIKTest/NaturalIKTest.cpp
index 1c4733b05d4e90d5a313026aeaaabd738932b024..65fa2f6ddf1046e8d578798cbb94023110a4907f 100644
--- a/source/RobotAPI/components/NaturalIKTest/NaturalIKTest.cpp
+++ b/source/RobotAPI/components/NaturalIKTest/NaturalIKTest.cpp
@@ -269,6 +269,7 @@ namespace armarx
         Eigen::VectorXf optimizationGradient(unsigned int id) override
         {
             int size = nodeSet->getSize();
+            (void) size;
 
             Eigen::MatrixXf J = ik->getJacobianMatrix(tcp);//.block(0, 0, 3, size);
             //Eigen::Vector3f d = eef->getGlobalPose().block<3,1>(0,3) - target;
@@ -326,6 +327,7 @@ namespace armarx
         Eigen::Vector3f shoulder_L = sho1_L->getPositionInRootFrame();
 
         Eigen::Vector3f offset = (shoulder_R + shoulder_L) / 2;
+        (void) offset;
 
         NaturalIK ik_R("Right", shoulder_R, 1);
         NaturalIK ik_L("Left", shoulder_L, 1);