diff --git a/hooks/conf_regen/10-apt b/hooks/conf_regen/10-apt
index 1512cd4daa..f31f822a65 100755
--- a/hooks/conf_regen/10-apt
+++ b/hooks/conf_regen/10-apt
@@ -93,7 +93,7 @@ Pin-Priority: -1
 
 do_post_regen() {
     # Purge expired keys (such as sury 95BD4743)
-    EXPIRED_KEYS="$(LC_ALL='en_US.UTF-8' apt-key list 2> /dev/null | grep -A1 'expired:' | grep -v 'expired\|^-' | sed 's/\s//g')"
+    EXPIRED_KEYS="$(LC_ALL='en_US.UTF-8' apt-key list 2> /dev/null | grep -A1 'expired:' | grep -v 'expired\|^-' | sed 's/\s//g' || true)"
     for KEY in $EXPIRED_KEYS; do apt-key del "$KEY" 2> /dev/null; done
 
     # Add sury key