diff --git a/src/lua_hudlib.c b/src/lua_hudlib.c
index d049bcfe2..0a4d0dcde 100644
--- a/src/lua_hudlib.c
+++ b/src/lua_hudlib.c
@@ -1309,7 +1309,7 @@ static int libd_getusertransflag(lua_State *L)
 }
 
 // Return the time elapsed for the previous frame, in tics.
-static int libd_deltaTime(lua_State *L)
+static int libd_getDeltaTime(lua_State *L)
 {
 	HUDONLY
 	lua_pushfixed(L, renderdeltatics);
@@ -1357,7 +1357,7 @@ static luaL_Reg lib_draw[] = {
 	{"renderer", libd_renderer},
 	{"localTransFlag", libd_getlocaltransflag},
 	{"userTransFlag", libd_getusertransflag},
-	{"deltaTime", libd_deltaTime},
+	{"getDeltaTime", libd_getDeltaTime},
 	{NULL, NULL}
 };