diff --git a/src/lua_baselib.c b/src/lua_baselib.c
index 4ae884396..944a4c486 100644
--- a/src/lua_baselib.c
+++ b/src/lua_baselib.c
@@ -4720,6 +4720,16 @@ static int lib_kIsPlayerInSpecialState(lua_State *L)
 	return 1;
 }
 
+static int lib_kIsPlayingDisplayPlayer(lua_State *L)
+{
+	player_t *player = *((player_t **)luaL_checkudata(L, 1, META_PLAYER));
+	INLEVEL
+	if (!player)
+		return LUA_ErrInvalid(L, "player_t");
+	lua_pushboolean(L, K_IsPlayingDisplayPlayer(player));
+	return 1;
+}
+
 static int lib_kGetCollideAngle(lua_State *L)
 {
 	mobj_t *t1 = *((mobj_t **)luaL_checkudata(L, 1, META_MOBJ));
@@ -5204,6 +5214,7 @@ static luaL_Reg lib[] = {
 	{"K_PointLimitForGametype",lib_kPointLimitForGametype},
 	{"K_Cooperative",lib_kCooperative},
 	{"K_isPlayerInSpecialState",lib_kIsPlayerInSpecialState},
+	{"K_IsPlayingDisplayPlayer",lib_kIsPlayingDisplayPlayer},
 
 	{"K_GetCollideAngle",lib_kGetCollideAngle},
 	{"K_AddHitLag",lib_kAddHitLag},