diff --git a/include/eigenpy/details.hpp b/include/eigenpy/details.hpp
index 3c52d662c004454448caca372cb7929adca1d217..397625a20e40480db950a148063fa150c0014222 100644
--- a/include/eigenpy/details.hpp
+++ b/include/eigenpy/details.hpp
@@ -245,7 +245,6 @@ namespace eigenpy
   {
     static PyObject* convert(MatType const & mat)
     {
-      typedef typename MatType::Scalar T;
       typedef typename MatType::Scalar Scalar;
       assert( (mat.rows()<INT_MAX) && (mat.cols()<INT_MAX) 
 	      && "Matrix range larger than int ... should never happen." );