diff --git a/m.cpp b/m.cpp
index b5f7309..cc8c9ce 100644
--- a/m.cpp
+++ b/m.cpp
@@ -1,4 +1,4 @@
-template<class T, unsigned ... RestD> struct Matrix;
+template<class T, unsigned ... RestDim> struct Matrix;
 
 template<class T, unsigned FirstDim > 
 struct Matrix<T, FirstDim> {
@@ -8,9 +8,9 @@ struct Matrix<T, FirstDim> {
   inline T& operator[](unsigned i) { return data[i]; }
 };
 
-template<class T, unsigned FirstDim, unsigned ... RestD > 
-struct Matrix<T, FirstDim, RestD...> {
-  typedef typename Matrix<T, RestD...>::GenericDimType FirstDimType;
+template<class T, unsigned FirstDim, unsigned ... RestDim > 
+struct Matrix<T, FirstDim, RestDim...> {
+  typedef typename Matrix<T, RestDim...>::GenericDimType FirstDimType;
   typedef FirstDimType GenericDimType[FirstDim];
 
   GenericDimType data;