diff --git a/share/completions/dpkg-reconfigure.fish b/share/completions/dpkg-reconfigure.fish
index a96f287a6..ba88ca38d 100644
--- a/share/completions/dpkg-reconfigure.fish
+++ b/share/completions/dpkg-reconfigure.fish
@@ -8,7 +8,7 @@ complete -x -f -c dpkg-reconfigure -s h -l help -d 'Display help'
 # General options
 complete -f -c dpkg-reconfigure -s f -l frontend -r -a "dialog readline noninteractive gnome kde editor web" -d 'Set configuration frontend'
 complete -f -c dpkg-reconfigure -s p -l priority -r -a "low medium high critical" -d 'Set priority threshold'
-complete -f -c dpkg-reconfigure -l default-priority -d "Use current default ("(echo get debconf/priority | debconf-communicate | string match -r '\w+$')") priority threshold"
+complete -f -c dpkg-reconfigure -l default-priority -d "Use current default ("(echo get debconf/priority | debconf-communicate 2>/dev/null | string match -r '\w+$')") priority threshold"
 complete -f -c dpkg-reconfigure -s u -l unseen-only -d 'Show only unseen question'
 complete -f -c dpkg-reconfigure -l force -d 'Reconfigure also inconsistent packages'
 complete -f -c dpkg-reconfigure -l no-reload -d 'Prevent reloading templates'