diff -r 8cc787bf5d2e -r a16c05dcf584 core/sourcemod.cpp
--- a/core/sourcemod.cpp	Thu Feb 15 01:02:34 2007 +0000
+++ b/core/sourcemod.cpp	Thu Feb 15 20:35:17 2007 +0000
@@ -156,6 +156,8 @@
 	SH_ADD_HOOK_MEMFUNC(IServerGameDLL, LevelShutdown, gamedll, this, &SourceModBase::LevelShutdown, false);
 	SH_ADD_HOOK_MEMFUNC(IServerGameDLL, GameFrame, gamedll, this, &SourceModBase::GameFrame, false);
 
+	enginePatch = SH_GET_CALLCLASS(engine);
+
 	/* Notify! */
 	SMGlobalClass *pBase = SMGlobalClass::head;
 	while (pBase)
@@ -314,6 +316,12 @@
 		pBase = pBase->m_pGlobalClassNext;
 	}
 
+	if (enginePatch)
+	{
+		SH_RELEASE_CALLCLASS(enginePatch);
+		enginePatch = NULL;
+	}
+
 	SH_REMOVE_HOOK_MEMFUNC(IServerGameDLL, LevelInit, gamedll, this, &SourceModBase::LevelInit, false);
 	SH_REMOVE_HOOK_MEMFUNC(IServerGameDLL, LevelShutdown, gamedll, this, &SourceModBase::LevelShutdown, false);
 	SH_REMOVE_HOOK_MEMFUNC(IServerGameDLL, GameFrame, gamedll, this, &SourceModBase::GameFrame, false);