diff --git a/engine/client/render.h b/engine/client/render.h
index 0abec9358..727de6bda 100644
--- a/engine/client/render.h
+++ b/engine/client/render.h
@@ -341,3 +341,5 @@ extern	cvar_t	gl_finish;
 
 extern	cvar_t	gl_max_size;
 extern	cvar_t	gl_playermip;
+
+extern	cvar_t	r_palconvbits;