diff -Nburp tcsh-6.20.00.orig/tw.parse.c tcsh-6.20.00/tw.parse.c
--- tcsh-6.20.00.orig/tw.parse.c	2015-10-16 17:59:56.000000000 +0300
+++ tcsh-6.20.00/tw.parse.c	2017-07-18 11:04:32.973868982 +0300
@@ -2211,7 +2211,7 @@ print_by_column(Char *dir, Char *items[]
 		}
 		else {
 		    /* Print filename followed by '/' or '*' or ' ' */
-		    xprintf("%-S%c", items[i], filetype(dir, items[i]));
+		    xprintf("%-S%c", items[i], (char)filetype(dir, items[i]));
 		    wx++;
 		}
 #endif /* COLOR_LS_F */