diff -ur dash-0.5.3.orig/src/expand.c dash-0.5.3/src/expand.c
--- dash-0.5.3.orig/src/expand.c	2005-11-26 04:17:55.000000000 +0100
+++ dash-0.5.3/src/expand.c	2006-10-04 10:02:08.186753039 +0200
@@ -1581,7 +1581,7 @@
 				if (c == '[') {
 					const char *r;
 
-					found |= ccmatch(p, chr, &r);
+					found |= !!ccmatch(p, chr, &r);
 					if (r) {
 						p = r;
 						continue;