diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index 5f04effb13..aa67b13d1a 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -828,7 +828,7 @@ set( FASTMATH_PCH_SOURCES
 	r_segs.cpp
 	r_sky.cpp
 	r_things.cpp
-	r_wallscan.cpp
+	r_walldraw.cpp
 	s_advsound.cpp
 	s_environment.cpp
 	s_playlist.cpp
diff --git a/src/r_wallscan.cpp b/src/r_walldraw.cpp
similarity index 99%
rename from src/r_wallscan.cpp
rename to src/r_walldraw.cpp
index 8c5f04d54a..de039115a3 100644
--- a/src/r_wallscan.cpp
+++ b/src/r_walldraw.cpp
@@ -1,5 +1,5 @@
 /*
-**  Replacement for Build's wallscan free of any Build licensing issues.
+**  Wall drawing stuff free of Build pollution
 **  Copyright (c) 2016 Magnus Norddahl
 **
 **  This software is provided 'as-is', without any express or implied