diff --git a/GPU/ge_constants.h b/GPU/ge_constants.h
index bfa3f12825..f1dbbf4d6f 100644
--- a/GPU/ge_constants.h
+++ b/GPU/ge_constants.h
@@ -349,7 +349,8 @@ enum GELightType
 {
 	GE_LIGHTTYPE_DIRECTIONAL = 0,
 	GE_LIGHTTYPE_POINT = 1,
-	GE_LIGHTTYPE_SPOT = 2
+	GE_LIGHTTYPE_SPOT = 2,
+	GE_LIGHTTYPE_UNKNOWN = 3
 };
 
 enum GELightColorSetting