diff --git a/cura/BackendPlugin.py b/cura/BackendPlugin.py
index 5f22e33fbb..be48aa50d2 100644
--- a/cura/BackendPlugin.py
+++ b/cura/BackendPlugin.py
@@ -4,10 +4,10 @@ import subprocess
 from typing import Optional, List
 
 from UM.Logger import Logger
-from UM.PluginObject import PluginObject
+from UM.Settings.AdditionalSettingDefinitionAppender import AdditionalSettingDefinitionsAppender
 
 
-class BackendPlugin(PluginObject):
+class BackendPlugin(AdditionalSettingDefinitionsAppender):
     def __init__(self) -> None:
         super().__init__()
         self.__port: int = 0
diff --git a/cura/CuraApplication.py b/cura/CuraApplication.py
index 807757d1ed..1a00d527d3 100755
--- a/cura/CuraApplication.py
+++ b/cura/CuraApplication.py
@@ -1745,6 +1745,7 @@ class CuraApplication(QtApplication):
         pass
 
     def _addBackendPlugin(self, backend_plugin: "BackendPlugin") -> None:
+        self._container_registry.addAdditionalSettingDefinitionsAppender(backend_plugin)
         self._backend_plugins.append(backend_plugin)
 
     def getBackendPlugins(self) -> List["BackendPlugin"]: