diff --git a/src/constraint_container.h b/src/constraint_container.h
index 9da4469e7f1e4fbf38ac4a1b00b4f5e6f316c355..d414e58dbb901873f1d2a898d32171e285dd2879 100644
--- a/src/constraint_container.h
+++ b/src/constraint_container.h
@@ -22,7 +22,7 @@ class ConstraintContainer: public ConstraintSparse<3,2,1,2,1>
 			lmk_ptr_(_lmk_ptr),
 			corner_(_corner)
 		{
-            assert(_corner >= 0 && _corner <= 3 && "Wrong corner id in constraint container constructor");
+            assert(/*_corner >= 0 &&*/ _corner <= 3 && "Wrong corner id in constraint container constructor");
             setType("CONTAINER");
 
             std::cout << "new constraint container: corner idx = " << corner_ << std::endl;
diff --git a/src/landmark_container.cpp b/src/landmark_container.cpp
index b41a0fc2d3eb2387481c4cc1539f7ea4035299f3..bd28dcea66703aabd50d681672133daa7ab51da5 100644
--- a/src/landmark_container.cpp
+++ b/src/landmark_container.cpp
@@ -181,7 +181,7 @@ Eigen::MatrixXs LandmarkContainer::getCorners() const
 
 Eigen::VectorXs LandmarkContainer::getCorner(const unsigned int _id) const
 {
-    assert(_id >= 0 && _id <= 4 && "wrong corner id parameter in getCorner(id)");
+    assert(/*_id >= 0 &&*/ _id <= 4 && "wrong corner id parameter in getCorner(id)");
     return corners_.col(_id);
 }