diff --git a/extensions/sdktools/extension.cpp b/extensions/sdktools/extension.cpp
index bb0aa9c6..50638e66 100644
--- a/extensions/sdktools/extension.cpp
+++ b/extensions/sdktools/extension.cpp
@@ -37,7 +37,7 @@
 #include "tempents.h"
 
 #if defined ORANGEBOX_BUILD
-	#define SDKTOOLS_GAME_FILE		"sdktools.games.ep2.txt"
+	#define SDKTOOLS_GAME_FILE		"sdktools.games.ep2"
 #else
 	#define SDKTOOLS_GAME_FILE		"sdktools.games"
 #endif