diff --git a/cura/BuildVolume.py b/cura/BuildVolume.py
index a14d314804..37a2a9895e 100755
--- a/cura/BuildVolume.py
+++ b/cura/BuildVolume.py
@@ -1040,11 +1040,11 @@ class BuildVolume(SceneNode):
     #   stack.
     #
     #   \return A sequence of setting values, one for each extruder.
-    def _getSettingFromAllExtruders(self, setting_key):
+    def _getSettingFromAllExtruders(self, setting_key: str) -> List[Any]:
         all_values = ExtruderManager.getInstance().getAllExtruderSettings(setting_key, "value")
         all_types = ExtruderManager.getInstance().getAllExtruderSettings(setting_key, "type")
-        for i in range(len(all_values)):
-            if not all_values[i] and (all_types[i] == "int" or all_types[i] == "float"):
+        for i, (setting_value, setting_type) in enumerate(zip(all_values, all_types)):
+            if not setting_value and (setting_type == "int" or setting_type == "float"):
                 all_values[i] = 0
         return all_values
 
diff --git a/cura/Settings/ExtruderManager.py b/cura/Settings/ExtruderManager.py
index 3ed08cf118..53c0a54f85 100755
--- a/cura/Settings/ExtruderManager.py
+++ b/cura/Settings/ExtruderManager.py
@@ -180,7 +180,7 @@ class ExtruderManager(QObject):
     #   \param setting_key  \type{str} The setting to get the property of.
     #   \param property  \type{str} The property to get.
     #   \return \type{List} the list of results
-    def getAllExtruderSettings(self, setting_key: str, prop: str) -> List:
+    def getAllExtruderSettings(self, setting_key: str, prop: str) -> List[Any]:
         result = []
 
         for extruder_stack in self.getActiveExtruderStacks():