diff --git a/cura/CuraApplication.py b/cura/CuraApplication.py
index 64d88d13dc..f44393657f 100755
--- a/cura/CuraApplication.py
+++ b/cura/CuraApplication.py
@@ -409,7 +409,7 @@ class CuraApplication(QtApplication):
 
         SettingFunction.registerOperator("extruderValue", self._cura_formula_functions.getValueInExtruder)
         SettingFunction.registerOperator("extruderValues", self._cura_formula_functions.getValuesInAllExtruders)
-        SettingFunction.registerOperator("anyExtruderNrWithOrDefault", self._cura_formula_functions.getAnyExtruderPositionWithOrDefault)
+        SettingFunction.registerOperator("anyExtruderWithMaterial", self._cura_formula_functions.getExtruderPositionWithMaterial)
         SettingFunction.registerOperator("resolveOrValue", self._cura_formula_functions.getResolveOrValue)
         SettingFunction.registerOperator("defaultExtruderPosition", self._cura_formula_functions.getDefaultExtruderPosition)
         SettingFunction.registerOperator("valueFromContainer", self._cura_formula_functions.getValueFromContainerAtIndex)
diff --git a/cura/Settings/CuraFormulaFunctions.py b/cura/Settings/CuraFormulaFunctions.py
index 8dd96cc03e..08c24180bb 100644
--- a/cura/Settings/CuraFormulaFunctions.py
+++ b/cura/Settings/CuraFormulaFunctions.py
@@ -97,14 +97,14 @@ class CuraFormulaFunctions:
 
         return result
 
-    # Get the first extruder that adheres to a specific (boolean) property, like 'material_is_support_material'.
-    def getAnyExtruderPositionWithOrDefault(self, filter_key: str,
+    # Get the first extruder with material that adheres to a specific (boolean) property, like 'material_is_support_material'.
+    def getExtruderPositionWithMaterial(self, filter_key: str,
                                context: Optional["PropertyEvaluationContext"] = None) -> str:
         for extruder in self._getActiveExtruders(context):
             material_container = extruder.material
             value = material_container.getProperty(filter_key, "value", context)
             if value is not None:
-                return extruder.position
+                return str(extruder.position)
         return self.getDefaultExtruderPosition()
 
     # Get the resolve value or value for a given key.
diff --git a/docs/profiles/getting_a_setting_value.md b/docs/profiles/getting_a_setting_value.md
index bd106eb2da..ab18be0f42 100644
--- a/docs/profiles/getting_a_setting_value.md
+++ b/docs/profiles/getting_a_setting_value.md
@@ -54,7 +54,7 @@ There are also a few extra things that can be used in these expressions:
 * The function `extruderValue(extruder, key)` will evaluate a particular setting for a particular extruder.
 * The function `resolveOrValue(key)` will perform the full setting evaluation as described in this document for the current context (so if this setting is being evaluated for the second extruder it would perform it as if coming from the second extruder).
 * The function `defaultExtruderPosition()` will get the first extruder that is not disabled. For instance, if a printer has three extruders but the first is disabled, this would return `1` to indicate the second extruder (0-indexed).
-* The function `anyExtruderNrWithOrDefault(key)` will filter the list of extruders on the key, and then give the first index for which it is true, or if none of them are, the default one as specified by the 'default extruder position' function above. 
+* The function `anyExtruderWithMaterial(key)` will filter the list of extruders on the key of material quality, and then give the first index for which it is true, or if none of them are, the default one as specified by the 'default extruder position' function above. 
 * The function `valueFromContainer(key, index)` will get a setting value from the global stack, but skip the first few containers in that stack. It will skip until it reaches a particular index in the container stack.
 * The function `extruderValueFromContainer(key, index)` will get a setting value from the current extruder stack, but skip the first few containers in that stack. It will skip until it reaches a particular index in the container stack.
 
diff --git a/resources/definitions/fdmprinter.def.json b/resources/definitions/fdmprinter.def.json
index 2f4b8cc3e2..40d1eb3b1c 100644
--- a/resources/definitions/fdmprinter.def.json
+++ b/resources/definitions/fdmprinter.def.json
@@ -4500,7 +4500,7 @@
                     "type": "extruder",
                     "default_value": "0",
                     "enabled": "(support_enable or support_meshes_present) and extruders_enabled_count > 1",
-                    "value": "int(anyExtruderNrWithOrDefault('material_is_support_material'))",
+                    "value": "int(anyExtruderWithMaterial('material_is_support_material'))",
                     "settable_per_mesh": false,
                     "settable_per_extruder": false,
                     "children":