--- Completion/BSD/Command/_chflags.orig	2005-05-09 23:55:24.000000000 +0200
+++ Completion/BSD/Command/_chflags	2005-05-09 23:55:03.000000000 +0200
@@ -25,7 +25,7 @@
   unset own
 fi
 
-if [[ $OSTYPE = freebsd* ]]; then
+if [[ $OSTYPE = freebsd* || $OSTYPE = dragonfly* ]]; then
   flags=( $flags[@]
     '(nouunlnk)uunlnk[set the user undeletable flag]'
     '(uunlnk)nouunlnk[unset the user undeletable flag]'