diff --git a/plugins/Marketplace/Marketplace.py b/plugins/Marketplace/Marketplace.py
index 858ea867ee..5ebc7830ed 100644
--- a/plugins/Marketplace/Marketplace.py
+++ b/plugins/Marketplace/Marketplace.py
@@ -13,7 +13,7 @@ from UM.PluginRegistry import PluginRegistry  # To find out where we are stored
 
 from .RemotePackageList import RemotePackageList  # To register this type with QML.
 from .LocalPackageList import LocalPackageList  # To register this type with QML.
-from .Manager import Manager  # To register this type with QML.
+from .RestartManager import RestartManager  # To register this type with QML.
 
 if TYPE_CHECKING:
     from PyQt5.QtCore import QObject
@@ -31,7 +31,7 @@ class Marketplace(Extension):
 
         qmlRegisterType(RemotePackageList, "Marketplace", 1, 0, "RemotePackageList")
         qmlRegisterType(LocalPackageList, "Marketplace", 1, 0, "LocalPackageList")
-        qmlRegisterType(Manager, "Marketplace", 1, 0, "Manager")
+        qmlRegisterType(RestartManager, "Marketplace", 1, 0, "RestartManager")
 
     @pyqtSlot()
     def show(self) -> None:
diff --git a/plugins/Marketplace/Manager.py b/plugins/Marketplace/RestartManager.py
similarity index 79%
rename from plugins/Marketplace/Manager.py
rename to plugins/Marketplace/RestartManager.py
index f367579079..5b66ca0292 100644
--- a/plugins/Marketplace/Manager.py
+++ b/plugins/Marketplace/RestartManager.py
@@ -1,17 +1,21 @@
 #  Copyright (c) 2021 Ultimaker B.V.
 #  Cura is released under the terms of the LGPLv3 or higher.
-from typing import Optional
+from typing import Optional, TYPE_CHECKING
 
 from PyQt5.QtCore import QObject, pyqtProperty, pyqtSignal
 
 from cura.CuraApplication import CuraApplication
-from UM.PluginRegistry import PluginRegistry
 
-class Manager(QObject):
+if TYPE_CHECKING:
+    from UM.PluginRegistry import PluginRegistry
+    from cura.CuraPackageManager import CuraPackageManager
+
+
+class RestartManager(QObject):
     def __init__(self, parent: Optional[QObject] = None):
         super().__init__(parent = parent)
         self._manager: "CuraPackageManager" = CuraApplication.getInstance().getPackageManager()
-        self._plugin_registry: PluginRegistry = CuraApplication.getInstance().getPluginRegistry()
+        self._plugin_registry: "PluginRegistry" = CuraApplication.getInstance().getPluginRegistry()
 
         self._manager.installedPackagesChanged.connect(self.checkIfRestartNeeded)
         self._plugin_registry.hasPluginsEnabledOrDisabledChanged.connect(self.checkIfRestartNeeded)
diff --git a/plugins/Marketplace/resources/qml/Marketplace.qml b/plugins/Marketplace/resources/qml/Marketplace.qml
index c04ef5c027..017a9e3dde 100644
--- a/plugins/Marketplace/resources/qml/Marketplace.qml
+++ b/plugins/Marketplace/resources/qml/Marketplace.qml
@@ -14,7 +14,7 @@ Window
 {
     id: marketplaceDialog
     property variant catalog: UM.I18nCatalog { name: "cura" }
-    property variant manager: Marketplace.Manager { }
+    property variant restartManager: Marketplace.RestartManager { }
 
     signal searchStringChanged(string new_search)
 
@@ -234,7 +234,7 @@ Window
     {
         height: quitButton.height + 2 * UM.Theme.getSize("default_margin").width
         color: UM.Theme.getColor("primary")
-        visible: manager.showRestartNotification
+        visible: restartManager.showRestartNotification
         anchors
         {
             left: parent.left