diff --git a/cmake b/cmake
index 52d25e05c..b47ff3fd6 160000
--- a/cmake
+++ b/cmake
@@ -1 +1 @@
-Subproject commit 52d25e05c3b5dfd70c79b3e75787fdc78c6f695e
+Subproject commit b47ff3fd66e5f4cbca8eb5a7c078c735689f3ba8
diff --git a/include/eigenpy/details.hpp b/include/eigenpy/details.hpp
index e80e3dfa2..babf71af7 100644
--- a/include/eigenpy/details.hpp
+++ b/include/eigenpy/details.hpp
@@ -187,12 +187,8 @@ namespace eigenpy
     static void* convertible(PyArrayObject* obj_ptr)
     {
       if (!PyArray_Check(obj_ptr))
-      {
-#ifndef NDEBUG
-        std::cerr << "The python object is not a numpy array." << std::endl;
-#endif
         return 0;
-      }
+
       if(MatType::IsVectorAtCompileTime)
       {
         // Special care of scalar matrix of dimension 1x1.