diff --git a/Quake/main_sdl.c b/Quake/main_sdl.c
index a3dc3e3f..40e102d8 100644
--- a/Quake/main_sdl.c
+++ b/Quake/main_sdl.c
@@ -180,7 +180,7 @@ int main(int argc, char *argv[])
 
 		Host_Frame (time);
 
-		if (time < sys_throttle.value)
+		if (time < sys_throttle.value && !cls.timedemo)
 			SDL_Delay(1);
 
 		oldtime = newtime;