diff --git a/Debug/DebTime.hh b/Debug/DebTime.hh
index d8b21dbf05f5c628138a40bb7ce12a6726a34528..4fc343dc32957d8c24f022bfc3f5e6d930f2e19b 100644
--- a/Debug/DebTime.hh
+++ b/Debug/DebTime.hh
@@ -16,7 +16,7 @@ namespace Debug {
 template <typename DivisorT = int>
 class StopWatchSessionT
 {
-  static constexpr std::remove_reference_t<DivisorT> ONE = 1;
+  static constexpr typename std::remove_reference<DivisorT>::type ONE = 1;
 
 public:
   StopWatchSessionT(Enter& _deb, const char* _sssn_name = nullptr,