diff --git a/src/dehacked.c b/src/dehacked.c
index 2d0176421..094329668 100644
--- a/src/dehacked.c
+++ b/src/dehacked.c
@@ -8269,10 +8269,10 @@ static inline int lib_getenum(lua_State *L)
 			return 0;
 		LUA_PushUserdata(L, &players[serverplayer], META_PLAYER);
 		return 1;
-	} else if (fastcmp(word,"admin")) {
-		//if (!playeringame[adminplayer] || IsPlayerAdmin(serverplayer))
-			//return 0;
-		//LUA_PushUserdata(L, &players[adminplayer], META_PLAYER);
+	} else if (fastcmp(word,"admin")) { // BACKWARDS COMPATIBILITY HACK: This was replaced with IsPlayerAdmin(), but some 2.1 Lua scripts still use the admin variable. It now points to the first admin player in the array.
+		if (!playeringame[adminplayers[0]] || IsPlayerAdmin(serverplayer))
+			return 0;
+		LUA_PushUserdata(L, &players[adminplayers[0]], META_PLAYER);
 		return 1;
 	} else if (fastcmp(word,"emeralds")) {
 		lua_pushinteger(L, emeralds);
diff --git a/src/lua_baselib.c b/src/lua_baselib.c
index e8e8fd020..892974bdc 100644
--- a/src/lua_baselib.c
+++ b/src/lua_baselib.c
@@ -20,6 +20,9 @@
 #include "m_random.h"
 #include "s_sound.h"
 #include "g_game.h"
+#include "hu_stuff.h"
+#include "console.h"
+#include "d_netcmd.h" // IsPlayerAdmin
 
 #include "lua_script.h"
 #include "lua_libs.h"
@@ -93,6 +96,16 @@ static int lib_evalMath(lua_State *L)
 	return 1;
 }
 
+static int lib_isPlayerAdmin(lua_State *L)
+{
+	player_t *player = *((player_t **)luaL_checkudata(L, 1, META_PLAYER));
+	//HUDSAFE
+	if (!player)
+		return LUA_ErrInvalid(L, "player_t");
+	lua_pushboolean(L, IsPlayerAdmin(player-players));
+	return 1;
+}
+
 // M_RANDOM
 //////////////
 
@@ -1983,6 +1996,7 @@ static int lib_gTicsToMilliseconds(lua_State *L)
 static luaL_Reg lib[] = {
 	{"print", lib_print},
 	{"EvalMath", lib_evalMath},
+	{"IsPlayerAdmin", lib_isPlayerAdmin},
 
 	// m_random
 	{"P_RandomFixed",lib_pRandomFixed},