diff --git a/Eigen/src/Core/util/XprHelper.h b/Eigen/src/Core/util/XprHelper.h
index 57f86f5ba..24268bfab 100644
--- a/Eigen/src/Core/util/XprHelper.h
+++ b/Eigen/src/Core/util/XprHelper.h
@@ -1023,6 +1023,9 @@ struct enable_packet_segment<ArrayWrapper<Xpr>> : enable_packet_segment<remove_a
 template <typename Xpr>
 struct enable_packet_segment<MatrixWrapper<Xpr>> : enable_packet_segment<remove_all_t<Xpr>> {};
 
+template <typename Xpr>
+struct enable_packet_segment<DiagonalWrapper<Xpr>> : enable_packet_segment<remove_all_t<Xpr>> {};
+
 }  // end namespace internal
 
 /** \class ScalarBinaryOpTraits