diff --git a/Eigen/src/Core/products/TriangularSolverMatrix.h b/Eigen/src/Core/products/TriangularSolverMatrix.h
index 9f5ead2d61d..7354d8df28e 100644
--- a/Eigen/src/Core/products/TriangularSolverMatrix.h
+++ b/Eigen/src/Core/products/TriangularSolverMatrix.h
@@ -21,6 +21,7 @@ template <typename Scalar, typename Index, int Mode, bool Conjugate, int TriStor
 struct trsmKernelL {
   // Generic Implementation of triangular solve for triangular matrix on left and multiple rhs.
   // Handles non-packed matrices.
+  EIGEN_DEVICE_FUNC
   static void kernel(
     Index size, Index otherSize,
     const Scalar* _tri, Index triStride,
@@ -31,6 +32,7 @@ template <typename Scalar, typename Index, int Mode, bool Conjugate, int TriStor
 struct trsmKernelR {
   // Generic Implementation of triangular solve for triangular matrix on right and multiple lhs.
   // Handles non-packed matrices.
+  EIGEN_DEVICE_FUNC
   static void kernel(
     Index size, Index otherSize,
     const Scalar* _tri, Index triStride,
@@ -38,6 +40,7 @@ struct trsmKernelR {
 };
 
 template <typename Scalar, typename Index, int Mode, bool Conjugate, int TriStorageOrder,int OtherInnerStride>
+EIGEN_DEVICE_FUNC
 EIGEN_STRONG_INLINE void trsmKernelL<Scalar, Index, Mode, Conjugate, TriStorageOrder, OtherInnerStride>::kernel(
     Index size, Index otherSize,
     const Scalar* _tri, Index triStride,
@@ -89,6 +92,7 @@ EIGEN_STRONG_INLINE void trsmKernelL<Scalar, Index, Mode, Conjugate, TriStorageO
 
 
 template <typename Scalar, typename Index, int Mode, bool Conjugate, int TriStorageOrder, int OtherInnerStride>
+EIGEN_DEVICE_FUNC
 EIGEN_STRONG_INLINE void trsmKernelR<Scalar, Index, Mode, Conjugate, TriStorageOrder, OtherInnerStride>::kernel(
     Index size, Index otherSize,
     const Scalar* _tri, Index triStride,