diff --git a/Eigen/src/Core/TriangularMatrix.h b/Eigen/src/Core/TriangularMatrix.h
index d1fd21ad7..602f0c5d1 100644
--- a/Eigen/src/Core/TriangularMatrix.h
+++ b/Eigen/src/Core/TriangularMatrix.h
@@ -1127,7 +1127,7 @@ struct triangular_assignment_loop<Kernel, StrictlyUpper, Dynamic, ClearOpposite>
         kernel.assignCoeff(i, j);
       if (ClearOpposite)
         for(Index i = maxi; i < kernel.rows(); ++i)
-          kernel.assignCoeff(i, j) = Scalar(0);
+          kernel.assignCoeff(i, j, Scalar(0));
     }
   }
 };