diff --git a/examples/RobotSimulator/b3RobotSimulatorClientAPI.h b/examples/RobotSimulator/b3RobotSimulatorClientAPI.h
index 9fe1b8c50..a6f6ef1f9 100644
--- a/examples/RobotSimulator/b3RobotSimulatorClientAPI.h
+++ b/examples/RobotSimulator/b3RobotSimulatorClientAPI.h
@@ -138,7 +138,7 @@ public:
 	b3Vector3 getEulerFromQuaternion(const b3Quaternion& quat);
 
 	int loadURDF(const std::string& fileName, const struct b3RobotSimulatorLoadUrdfFileArgs& args = b3RobotSimulatorLoadUrdfFileArgs());
-	bool loadSDF(const std::string& fileName, b3RobotSimulatorLoadFileResults& results = b3RobotSimulatorLoadFileResults(), const struct b3RobotSimulatorLoadSdfFileArgs& args = b3RobotSimulatorLoadSdfFileArgs());
+	bool loadSDF(const std::string& fileName, b3RobotSimulatorLoadFileResults& results, const struct b3RobotSimulatorLoadSdfFileArgs& args = b3RobotSimulatorLoadSdfFileArgs());
 	bool loadMJCF(const std::string& fileName, b3RobotSimulatorLoadFileResults& results);
 	bool loadBullet(const std::string& fileName, b3RobotSimulatorLoadFileResults& results);