diff --git a/moonraker/components/update_manager/app_deploy.py b/moonraker/components/update_manager/app_deploy.py
index 1c94417..2706697 100644
--- a/moonraker/components/update_manager/app_deploy.py
+++ b/moonraker/components/update_manager/app_deploy.py
@@ -76,6 +76,7 @@ class AppDeploy(BaseDeploy):
                 f"option 'channel'. Type '{self.type}' supports the following "
                 f"channels: {str_channels}.  Falling back to channel '{self.channel}'"
             )
+        self._is_valid: bool = False
         self.virtualenv: Optional[pathlib.Path] = None
         self.py_exec: Optional[pathlib.Path] = None
         self.pip_cmd: Optional[str] = None
diff --git a/moonraker/components/update_manager/update_manager.py b/moonraker/components/update_manager/update_manager.py
index caec8ef..dfed1ab 100644
--- a/moonraker/components/update_manager/update_manager.py
+++ b/moonraker/components/update_manager/update_manager.py
@@ -210,18 +210,18 @@ class UpdateManager:
         kcfg.set_option("path", kpath)
         kcfg.set_option("env", executable)
         kcfg.set_option("type", str(app_type))
-        need_notification = not isinstance(kupdater, AppDeploy)
+        notify = not isinstance(kupdater, AppDeploy)
         kclass = get_deploy_class(app_type, BaseDeploy)
-        self.updaters['klipper'] = kclass(kcfg, self.cmd_helper)
-        coro = self._update_klipper_repo(need_notification)
+        coro = self._update_klipper_repo(kclass(kcfg, self.cmd_helper), notify)
         self.event_loop.create_task(coro)
 
-    async def _update_klipper_repo(self, notify: bool) -> None:
+    async def _update_klipper_repo(self, updater: BaseDeploy, notify: bool) -> None:
         async with self.cmd_request_lock:
+            self.updaters['klipper'] = updater
             umdb = self.cmd_helper.get_umdb()
             await umdb.pop('klipper', None)
-            await self.updaters['klipper'].initialize()
-            await self.updaters['klipper'].refresh()
+            await updater.initialize()
+            await updater.refresh()
         if notify:
             self.cmd_helper.notify_update_refreshed()