diff --git a/Core/Time.h b/Core/Time.h
index 1dd2e00..a9deddd 100644
--- a/Core/Time.h
+++ b/Core/Time.h
@@ -25,6 +25,7 @@ namespace std {
 /**
  * Prints std::time_point values in a way that is useful for unit tests.
  */
+/*
 template<typename Clock, typename Duration>
 std::ostream&
 operator<<(std::ostream& os,
@@ -45,7 +46,7 @@ operator<<(std::ostream& os,
                         microsSinceUnixEpoch / 1000000,
                         microsSinceUnixEpoch % 1000000);
 }
-
+*/
 }
 
 namespace LogCabin {