diff --git a/plugins/UM3NetworkPrinting/ClusterUM3OutputDevice.py b/plugins/UM3NetworkPrinting/ClusterUM3OutputDevice.py
index 3e562adf14..353a67ccd0 100644
--- a/plugins/UM3NetworkPrinting/ClusterUM3OutputDevice.py
+++ b/plugins/UM3NetworkPrinting/ClusterUM3OutputDevice.py
@@ -552,7 +552,7 @@ class ClusterUM3OutputDevice(NetworkedPrinterOutputDevice):
 
         configuration.setExtruderConfigurations(extruders)
         print_job.updateConfiguration(configuration)
-        print_job.setCompatibleMachineFamilies(data["compatible_machine_families"])
+        print_job.setCompatibleMachineFamilies(data.get("compatible_machine_families", []))
         print_job.stateChanged.connect(self._printJobStateChanged)
         return print_job