diff --git a/DEBIAN/postinst b/DEBIAN/postinst
index afecd94..86ede75 100755
--- a/DEBIAN/postinst
+++ b/DEBIAN/postinst
@@ -11,8 +11,8 @@ SSHD_CONFIG=/etc/ssh/sshd_config
 
 sed -i "s/ldap_default_authtok =.*/ldap_default_authtok = $RET/" $SSSD_CONFIG
 
-sed -i "s/.*AuthorizedKeysCommand.*/AuthorizedKeysCommand \/usr\/bin\/sss_ssh_authorizedkeys/" $SSHD_CONFIG
-sed -i "s/#AuthorizedKeysCommandUser/AuthorizedKeysCommandUser/" $SSHD_CONFIG
+sed -i "s/#AuthorizedKeysCommand/AuthorizedKeysCommand/" $SSHD_CONFIG
+sed -i "/AuthorizedKeysCommand\( \|$\)/s/AuthorizedKeysCommand.*/AuthorizedKeysCommand \/usr\/bin\/sss_ssh_authorizedkeys/" $SSHD_CONFIG
 
 chmod 600 $SSSD_CONFIG
 chown root:root $SSSD_CONFIG