diff --git a/Eigen/src/Sparse/SparseBlock.h b/Eigen/src/Sparse/SparseBlock.h
index 5c148efdc..6659a88e2 100644
--- a/Eigen/src/Sparse/SparseBlock.h
+++ b/Eigen/src/Sparse/SparseBlock.h
@@ -35,6 +35,8 @@ struct ei_traits<SparseInnerVectorSet<MatrixType, Size> >
     Flags = MatrixType::Flags,
     RowsAtCompileTime = IsRowMajor ? Size : MatrixType::RowsAtCompileTime,
     ColsAtCompileTime = IsRowMajor ? MatrixType::ColsAtCompileTime : Size,
+    MaxRowsAtCompileTime = RowsAtCompileTime,
+    MaxColsAtCompileTime = ColsAtCompileTime,
     CoeffReadCost = MatrixType::CoeffReadCost
   };
 };
diff --git a/Eigen/src/Sparse/SparseMatrixBase.h b/Eigen/src/Sparse/SparseMatrixBase.h
index 8659fe475..d0b7c98c8 100644
--- a/Eigen/src/Sparse/SparseMatrixBase.h
+++ b/Eigen/src/Sparse/SparseMatrixBase.h
@@ -36,7 +36,7 @@
   *
   *
   */
-template<typename Derived> class SparseMatrixBase
+template<typename Derived> class SparseMatrixBase : public AnyMatrixBase<Derived>
 {
   public: