diff --git a/plugins/UM3NetworkPrinting/src/Cloud/CloudOutputDeviceManager.py b/plugins/UM3NetworkPrinting/src/Cloud/CloudOutputDeviceManager.py
index 25ee4cf5e5..7edff4ab67 100644
--- a/plugins/UM3NetworkPrinting/src/Cloud/CloudOutputDeviceManager.py
+++ b/plugins/UM3NetworkPrinting/src/Cloud/CloudOutputDeviceManager.py
@@ -119,7 +119,7 @@ class CloudOutputDeviceManager:
         self._syncing = False
         self._account.setSyncState(self.SYNC_SERVICE_NAME, SyncState.SUCCESS)
 
-    def _onGetRemoteClusterFailed(self, reply: QNetworkReply, error: QNetworkReply.NetworkError):
+    def _onGetRemoteClusterFailed(self, reply: QNetworkReply, error: QNetworkReply.NetworkError) -> None:
         self._syncing = False
         self._account.setSyncState(self.SYNC_SERVICE_NAME, SyncState.ERROR)
 
@@ -278,4 +278,4 @@ class CloudOutputDeviceManager:
 
         output_device_manager = CuraApplication.getInstance().getOutputDeviceManager()
         if device.key not in output_device_manager.getOutputDeviceIds():
-            output_device_manager.addOutputDevice(device)
\ No newline at end of file
+            output_device_manager.addOutputDevice(device)