diff --git a/plugins/UM3NetworkPrinting/src/Cloud/CloudOutputDevice.py b/plugins/UM3NetworkPrinting/src/Cloud/CloudOutputDevice.py
index 07dc962bf8..0c044bbb56 100644
--- a/plugins/UM3NetworkPrinting/src/Cloud/CloudOutputDevice.py
+++ b/plugins/UM3NetworkPrinting/src/Cloud/CloudOutputDevice.py
@@ -152,7 +152,7 @@ class CloudOutputDevice(NetworkedPrinterOutputDevice):
         
         # However, for manually added printers, the local IP address is used in lieu of a proper
         # network key, so check for that as well
-        if network_key.find(self.clusterData.host_internal_ip):
+        if self.clusterData.host_internal_ip is not None and network_key.find(self.clusterData.host_internal_ip):
             return True
 
         return False