diff --git a/helpers/DATA/ubuntu-release-upgrader/patch_changes/000-automatic_install_usrmerge_for_t-r-u.patch b/helpers/DATA/ubuntu-release-upgrader/patch_changes/000-automatic_install_usrmerge_for_t-r-u.patch
index 9d2e828b..3c51b4ef 100644
--- a/helpers/DATA/ubuntu-release-upgrader/patch_changes/000-automatic_install_usrmerge_for_t-r-u.patch
+++ b/helpers/DATA/ubuntu-release-upgrader/patch_changes/000-automatic_install_usrmerge_for_t-r-u.patch
@@ -23,7 +23,7 @@ index 9423f091..00d9b84c 100644
 +
 +            if res2.returncode != 0:
 +                # Installation failed, abort the upgrade with a clear message
-+                self.controller.error(_(
++                self.controller._view.error(_(
 +                    "The system is not /usr-merged and 'usrmerge' could not be "
 +                    "installed automatically. Please install it manually and "
 +                    "try again."
diff --git a/helpers/make-ubuntu-release-upgrader b/helpers/make-ubuntu-release-upgrader
index d784d1d0..1babbcaf 100644
--- a/helpers/make-ubuntu-release-upgrader
+++ b/helpers/make-ubuntu-release-upgrader
@@ -25,7 +25,7 @@
 # Also, don't forget to update the meta-release files at archive and packages.t.i
 # The "obsoletes" list from ubuntu has been removed
 
-VERSION=22
+VERSION=23
 
 . ./config
 # Previous upstream release name, update for each release.