diff -uNr twm-1.0.11/src/deftwmrc.c twm-1.0.11.mod/src/deftwmrc.c
--- twm-1.0.11/src/deftwmrc.c	2020-06-15 02:58:29.000000000 +0300
+++ twm-1.0.11.mod/src/deftwmrc.c	2020-09-24 00:07:30.293425716 +0300
@@ -67,7 +67,7 @@
     (const unsigned char *) "\"Show Iconmgr\"	f.showiconmgr",
     (const unsigned char *) "\"Hide Iconmgr\"	f.hideiconmgr",
     (const unsigned char *) "\"\"		f.nop",
-    (const unsigned char *) "\"Xterm\"		f.exec \"exec xterm &\"",
+    (const unsigned char *) "\"Aterm\"		f.exec \"exec aterm &\"",
     (const unsigned char *) "\"\"		f.nop",
     (const unsigned char *) "\"Kill\"		f.destroy",
     (const unsigned char *) "\"Delete\"	f.delete",
