diff --git a/include/SFML/System/Clock.hpp b/include/SFML/System/Clock.hpp
index 668e800c..e854c2f9 100644
--- a/include/SFML/System/Clock.hpp
+++ b/include/SFML/System/Clock.hpp
@@ -74,7 +74,7 @@ private :
     ////////////////////////////////////////////////////////////
     // Member data
     ////////////////////////////////////////////////////////////
-    Uint64 myStartTime; ///< Time of last reset, in nanoseconds
+    Uint64 myStartTime; ///< Time of last reset, in microseconds
 };
 
 } // namespace sf