diff --git a/debian/postinst b/debian/postinst
index 7e3aa886..74366373 100755
--- a/debian/postinst
+++ b/debian/postinst
@@ -5,6 +5,12 @@ set -e
 install-info --quiet --section "General commands" "General commands" \
  /usr/info/find.info.gz
 
+# In older releases, /var/lib/locate was owned by nobody
 # findutils_4.1-12 installed /var/lib/locate as root:root
 chown root:root /var/lib/locate
 chmod 755 /var/lib/locate
+
+# In some releases, updatedb.conf was installed executable
+if [ -x /etc/updatedb.conf ]; then
+  chmod 644 /etc/updatedb.conf
+fi