diff --git a/game_offsets.h b/game_offsets.h
index 8ea0379..92f6805 100644
--- a/game_offsets.h
+++ b/game_offsets.h
@@ -1,7 +1,7 @@
 #ifndef _INCLUDE_GAME_OFFSETS_
 #define _INCLUDE_GAME_OFFSETS_
 
-#ifdef WIN32
+#if SH_SYS == SH_SYS_WIN32
 int maxplayers_offs = 138; // m_nMaxClientsLimit (in CGameServer::SetMaxClients)
 #if SOURCE_ENGINE == SE_LEFT4DEAD
 #include "l4d1_offsets_win32.h"
diff --git a/l4dtoolz_mm.cpp b/l4dtoolz_mm.cpp
index f53a9b0..1987eb1 100644
--- a/l4dtoolz_mm.cpp
+++ b/l4dtoolz_mm.cpp
@@ -100,7 +100,7 @@ bool l4dtoolz::Load(PluginId id, ISmmAPI *ismm, char *error, size_t maxlen, bool
 	GET_V_IFACE_CURRENT(GetEngineFactory, g_pCVar, ICvar, CVAR_INTERFACE_VERSION);
 
 	void* handle = NULL;
-#ifdef PLATFORM_WINDOWS
+#if SH_SYS == SH_SYS_WIN32
 	if (!(handle=SH_GET_ORIG_VFNPTR_ENTRY(engine, &IVEngineServer::CreateFakeClient))) {
 		Warning("Failed to get address 'IVEngineServer::CreateFakeClient'\n");
 	} else {