diff --git a/testmaps/dirttest.map b/testmaps/dirttest.map
index 8992518b..c827a18f 100644
--- a/testmaps/dirttest.map
+++ b/testmaps/dirttest.map
@@ -3,6 +3,7 @@
 "wad" "free_wad.wad"
 "classname" "worldspawn"
 "_dirtdepth" "512"
+"_dirt" "1"
 {
 ( 64 -0 -0 ) ( 64 -0 -16 ) ( 64 -64 -0 ) brown_brick 64 0 0 1 1
 ( -320 -64 -16 ) ( -320 -0 -16 ) ( -320 -64 -0 ) brown_brick 64 0 0 1 1
@@ -189,7 +190,7 @@
 }
 {
 ( -16 192 -32 ) ( -16 192 -48 ) ( -16 128 -32 ) brown_brick 0 0 0 1 1
-( -128 128 -48 ) ( -128 192 -48 ) ( -128 128 -32 ) brown_brick 0 0 0 1 1
+( -80 128 -48 ) ( -80 192 -48 ) ( -80 128 -32 ) brown_brick 0 0 0 1 1
 ( -16 192 -32 ) ( -128 192 -32 ) ( -16 192 -48 ) brown_brick -16 0 0 1 1
 ( -128 128 -48 ) ( -128 128 -32 ) ( -16 128 -48 ) brown_brick -16 0 0 1 1
 ( -16 192 176 ) ( -16 128 176 ) ( -128 192 176 ) brown_brick -16 0 0 1 1
@@ -270,3 +271,30 @@
 "delay" "2"
 "light" "1300"
 }
+{
+"spawnflags" "0"
+"classname" "func_detail"
+"_dirt" "-1"
+{
+( -96 512 -32 ) ( -96 512 -48 ) ( -96 448 -32 ) brown_brick 64 -0 -0 1 1
+( -160 448 -48 ) ( -160 512 -48 ) ( -160 448 -32 ) brown_brick 64 -0 -0 1 1
+( -96 512 -32 ) ( -208 512 -32 ) ( -96 512 -48 ) brown_brick -64 -0 -0 1 1
+( -208 448 -48 ) ( -208 448 -32 ) ( -96 448 -48 ) brown_brick -64 -0 -0 1 1
+( -96 512 192 ) ( -96 448 192 ) ( -208 512 192 ) brown_brick -64 -64 -0 1 1
+( -208 448 -32 ) ( -96 448 -32 ) ( -208 512 -32 ) brown_brick -64 -64 -0 1 1
+}
+}
+{
+"spawnflags" "0"
+"classname" "func_detail"
+"_minlight" "255"
+"_dirt" "-1"
+{
+( -96 80 -32 ) ( -96 80 -48 ) ( -96 16 -32 ) brown_brick -16 -0 -0 1 1
+( -240 16 -48 ) ( -240 80 -48 ) ( -240 16 -32 ) brown_brick -16 -0 -0 1 1
+( -96 80 -32 ) ( -208 80 -32 ) ( -96 80 -48 ) brown_brick -64 -0 -0 1 1
+( -208 16 -48 ) ( -208 16 -32 ) ( -96 16 -48 ) brown_brick -64 -0 -0 1 1
+( -96 80 -0 ) ( -96 16 -0 ) ( -208 80 -0 ) brown_brick -64 16 -0 1 1
+( -208 16 -32 ) ( -96 16 -32 ) ( -208 80 -32 ) brown_brick -64 16 -0 1 1
+}
+}