diff --git a/vcg/math/matrix44.h b/vcg/math/matrix44.h
index bed79d4e..9826b58b 100644
--- a/vcg/math/matrix44.h
+++ b/vcg/math/matrix44.h
@@ -118,6 +118,11 @@ public:
   Matrix44 &SetRotate(T angle, const Point3<T> & axis); 
 
   T Determinant() const;
+
+  template <class Q> void Import(const Matrix44<Q> &m) {
+    for(int i = 0; i < 16; i++) 
+      _a[i] = (T)m._a[i];
+  }
 };