diff --git a/ruby/sfml-system/system/Clock.cpp b/ruby/sfml-system/system/Clock.cpp
index 5b7987169..e2cf0f43f 100644
--- a/ruby/sfml-system/system/Clock.cpp
+++ b/ruby/sfml-system/system/Clock.cpp
@@ -45,4 +45,5 @@ void Init_Clock( void )
 	
 	// Aliases
 	rb_define_alias( globalClockClass, "elapsedTime", "getElapsedTime" );
+	rb_define_alias( globalClockClass, "elapsed_time", "getElapsedTime" );
 }