diff --git a/src/r_segs.cpp b/src/r_segs.cpp
index 38db1a6b28..ccf6ccf20c 100644
--- a/src/r_segs.cpp
+++ b/src/r_segs.cpp
@@ -54,9 +54,8 @@
 CVAR(Bool, r_fogboundary, true, 0)
 CVAR(Bool, r_drawmirrors, true, 0)
 EXTERN_CVAR(Bool, r_fullbrightignoresectorcolor);
-EXTERN_CVAR(Bool, r_mipmap)
 
-namespace swrenderer       
+namespace swrenderer
 {
 	using namespace drawerargs;