diff --git a/data/core/terrain-graphics.cfg b/data/core/terrain-graphics.cfg
index 6b11c3c07cea..25e1a0f99d5e 100644
--- a/data/core/terrain-graphics.cfg
+++ b/data/core/terrain-graphics.cfg
@@ -736,14 +736,16 @@
 {NEW:WALL             Xuc,Xuce       (!,Xu*,Xo*)                                   walls/wall-mine}
 {NEW:WALL             Xu*            (Qx*,Ql*)                                 cave/wall-rough-chasm}
 #{NEW:WALL             Xu*            (!,Xu*)                                   cave/wall-rough}
+
 # testing
-{NEW:WALL2_CORNER            (Xo*)      Xu*                  (!,Xu*,Xo*)      cave/stone_walls/wall-mixed}
-{NEW:WALL2            (Xo*)      Xu*                  (!,Xu*,Xo*)      cave/stone_walls/wall-mixed}
-{NEW:WALL             Xu*            (!,Xu*,Xo*)                                   cave/wall-rough}
+{NEW:WALL2_CORNER     (Xo*)      Xu*           (!,Xu*,Xo*)      cave/stone_walls/wall-mixed}
+{NEW:WALL2            (Xo*)      Xu*           (!,Xu*,Xo*)      cave/stone_walls/wall-mixed}
+{NEW:WALL                        Xu*           (!,Xu*,Xo*)      cave/wall-rough}
+
 # testing
-{NEW:WALL_A10             Xol            (!,Xu*,Xo*)                                   cave/stone_walls/lit/wall-stone-lit}
-{NEW:WALL_CORNER	Xo*		(!,Xo*,Xu*)				   cave/stone_walls/wall-stone}
-{NEW:WALL             Xo*            (!,Xu*,Xo*)                                   cave/stone_walls/wall-stone}
+{NEW:WALL_CORNER                 Xo*		   (!,Xo*,Xu*)      cave/stone_walls/wall-stone}
+{NEW:WALL_A10                    Xol           (!,Xu*,Xo*)      cave/stone_walls/lit/wall-stone-lit}
+{NEW:WALL                        Xo*           (!,Xu*,Xo*)      cave/stone_walls/wall-stone}
 
 # New Generic Castle-to Chasm transition
 {TRANSITION_COMPLETE_LF (Cha,Kha,Coa,Koa,Cea,Kea)        Qx*                   -89    transition2   chasm/regular-snow-castle}