diff --git a/gamedata/sdktools.games/engine.ep2.txt b/gamedata/sdktools.games/engine.ep2.txt
index 6b1f1204..df8108e8 100644
--- a/gamedata/sdktools.games/engine.ep2.txt
+++ b/gamedata/sdktools.games/engine.ep2.txt
@@ -24,6 +24,7 @@
 			"game"		"garrysmod"
 			"game"		"pvkii"
 			"game"		"gesource"
+			"game"		"obsidian"
 		}
 
 		"Offsets"