diff --git a/apps/openmw-mp/Script/LangLua/LangLua.cpp b/apps/openmw-mp/Script/LangLua/LangLua.cpp
index f813776e8..927ba7cb3 100644
--- a/apps/openmw-mp/Script/LangLua/LangLua.cpp
+++ b/apps/openmw-mp/Script/LangLua/LangLua.cpp
@@ -178,7 +178,7 @@ void LangLua::LoadProgram(const char *filename)
 
     constexpr auto functions_n = sizeof(ScriptFunctions::functions) / sizeof(ScriptFunctions::functions[0]);
 
-#if __arm__
+#ifdef __arm__
     LuaFuctionData *functions_ = functions(IndicesFor<functions_n>{});
 #else
     LuaFuctionData *functions_ = functions<sizeof(ScriptFunctions::functions) / sizeof(ScriptFunctions::functions[0])>();