diff --git a/src/test/gtest_feature_imu.cpp b/src/test/gtest_feature_imu.cpp
index 60288f18220da5269969911cae8c8e66e1eb6f10..05541964254d38ed06985e03019fed4d477130db 100644
--- a/src/test/gtest_feature_imu.cpp
+++ b/src/test/gtest_feature_imu.cpp
@@ -163,7 +163,10 @@ TEST_F(FeatureIMU_test, addConstraint)
 {
     using namespace wolf;
 
-    ConstraintIMUPtr constraint_imu = std::make_shared<ConstraintIMU>(feat_imu, last_frame);
+    feat_imu->getFramePtr()->getTimeStamp();
+    last_frame->getTimeStamp();
+    ConstraintIMU constraint_imu(feat_imu,last_frame);
+    //ConstraintIMUPtr constraint_imu = std::make_shared<ConstraintIMU>(feat_imu, last_frame);
     //feat_imu->addConstraint(constraint_imu);
     //left_frame->addConstrainedBy(constraint_imu);
 }