diff --git a/lumps/textures/textures.cfg b/lumps/textures/textures.cfg
index 4f4eabeb..dd0f6a14 100644
--- a/lumps/textures/textures.cfg
+++ b/lumps/textures/textures.cfg
@@ -3286,6 +3286,8 @@ AQSUPP11    		16	128
 AQSUPP12    		64	128
 *	AQSUPP12    	0	0
 *       AQSUPP12        0       64
+AQSUPP13    		8	128
+*	AQSUPP13    	0	0
 AQTRIM01    		128	128
 *	AQTRIM01    	0	0
 *       AQTRIM01        0       16
diff --git a/patches/aqsupp13.png b/patches/aqsupp13.png
new file mode 100644
index 00000000..6ce363dc
Binary files /dev/null and b/patches/aqsupp13.png differ