diff --git a/extensions/cstrike/forwards.cpp b/extensions/cstrike/forwards.cpp
index 8f1b1db84..8a52d69ce 100644
--- a/extensions/cstrike/forwards.cpp
+++ b/extensions/cstrike/forwards.cpp
@@ -126,7 +126,7 @@ DETOUR_DECL_MEMBER0(DetourWeaponPrice, int)
 }
 #endif
 
-#if SOURCE_ENGINE != SE_CSGO
+#if SOURCE_ENGINE == SE_CSS
 DETOUR_DECL_MEMBER2(DetourTerminateRound, void, float, delay, int, reason)
 {
 	if (g_pIgnoreTerminateDetour)
@@ -135,7 +135,7 @@ DETOUR_DECL_MEMBER2(DetourTerminateRound, void, float, delay, int, reason)
 		DETOUR_MEMBER_CALL(DetourTerminateRound)(delay, reason);
 		return;
 	}
-#elif !defined(WIN32)
+#elif SOURCE_ENGINE == SE_CSGO && !defined(WIN32)
 DETOUR_DECL_MEMBER4(DetourTerminateRound, void, float, delay, int, reason, int, unknown, int, unknown2)
 {
 	if (g_pIgnoreTerminateDetour)
@@ -189,12 +189,12 @@ DETOUR_DECL_MEMBER3(DetourTerminateRound, void, int, reason, int, unknown, int,
 	reason++;
 #endif
 	
-#if SOURCE_ENGINE != SE_CSGO
+#if SOURCE_ENGINE == SE_CSS
 	if (result == Pl_Changed)
 		return DETOUR_MEMBER_CALL(DetourTerminateRound)(delay, reason);
 
 	return DETOUR_MEMBER_CALL(DetourTerminateRound)(orgdelay, orgreason);
-#elif !defined(WIN32)
+#elif SOURCE_ENGINE == SE_CSGO && !defined(WIN32)
 	if (result == Pl_Changed)
 		return DETOUR_MEMBER_CALL(DetourTerminateRound)(delay, reason, unknown, unknown2);
 
diff --git a/extensions/cstrike/natives.cpp b/extensions/cstrike/natives.cpp
index 0b4b87bff..f04a7488a 100644
--- a/extensions/cstrike/natives.cpp
+++ b/extensions/cstrike/natives.cpp
@@ -314,7 +314,7 @@ static cell_t CS_TerminateRound(IPluginContext *pContext, const cell_t *params)
 	reason++;
 #endif
 	
-#if SOURCE_ENGINE != SE_CSGO
+#if SOURCE_ENGINE == SE_CSS
 	static ICallWrapper *pWrapper = NULL;
 
 	if (!pWrapper)
@@ -343,7 +343,7 @@ static cell_t CS_TerminateRound(IPluginContext *pContext, const cell_t *params)
 	*(int*)vptr = reason;
 
 	pWrapper->Execute(vstk, NULL);
-#elif !defined(WIN32)
+#elif SOURCE_ENGINE == SE_CSGO && !defined(WIN32)
 	static ICallWrapper *pWrapper = NULL;
 
 	if (!pWrapper)
@@ -382,7 +382,7 @@ static cell_t CS_TerminateRound(IPluginContext *pContext, const cell_t *params)
 	*(int*)vptr = 0;
 
 	pWrapper->Execute(vstk, NULL);
-#else
+#else // CSGO Win32
 	static void *addr = NULL;
 
 	if(!addr)