diff --git a/r5dev/tier0/basetypes.h b/r5dev/tier0/basetypes.h
index 4535f301..95add17b 100644
--- a/r5dev/tier0/basetypes.h
+++ b/r5dev/tier0/basetypes.h
@@ -9,6 +9,7 @@
 //#define GAMEDLL_S2 /*[i]*/
 #define GAMEDLL_S3 /*[r]*/
 //#define GAMEDLL_S4 /*[i]*/
+//#define GAMEDLL_S5 /*[i]*/
 //#define GAMEDLL_S7 /*[i]*/
 
 //-----------------------------------------------------------------------------