diff --git a/Eigen/src/SparseCore/SparseAssign.h b/Eigen/src/SparseCore/SparseAssign.h
index c5589492e..4a8dd12e4 100644
--- a/Eigen/src/SparseCore/SparseAssign.h
+++ b/Eigen/src/SparseCore/SparseAssign.h
@@ -64,6 +64,7 @@ struct Sparse2Dense  {};
 template<> struct AssignmentKind<SparseShape, SparseShape>           { typedef Sparse2Sparse Kind; };
 template<> struct AssignmentKind<SparseShape, SparseTriangularShape> { typedef Sparse2Sparse Kind; };
 template<> struct AssignmentKind<DenseShape,  SparseShape>           { typedef Sparse2Dense  Kind; };
+template<> struct AssignmentKind<DenseShape,  SparseTriangularShape> { typedef Sparse2Dense  Kind; };
 
 
 template<typename DstXprType, typename SrcXprType>
diff --git a/test/sparse_basic.cpp b/test/sparse_basic.cpp
index d8e42e984..0c7d2c652 100644
--- a/test/sparse_basic.cpp
+++ b/test/sparse_basic.cpp
@@ -338,6 +338,10 @@ template<typename SparseMatrixType> void sparse_basic(const SparseMatrixType& re
     refMat3 = refMat2.template triangularView<StrictlyLower>();
     m3 = m2.template triangularView<StrictlyLower>();
     VERIFY_IS_APPROX(m3, refMat3);
+
+    // check sparse-traingular to dense
+    refMat3 = m2.template triangularView<StrictlyUpper>();
+    VERIFY_IS_APPROX(refMat3, DenseMatrix(refMat2.template triangularView<StrictlyUpper>()));
   }
   
   // test selfadjointView