diff --git a/src/client/valve/progs.src b/src/client/valve/progs.src
index 9046b6a0..67bb8106 100755
--- a/src/client/valve/progs.src
+++ b/src/client/valve/progs.src
@@ -4,6 +4,7 @@
 #define CSQC
 #define CLIENT
 #define VALVE
+#define CLASSIC_VGUI
 
 #includelist
 ../../shared/fteextensions.qc