diff --git a/src/idl_gen_python.cpp b/src/idl_gen_python.cpp
index d325fee5b1c..6fabdf15d80 100644
--- a/src/idl_gen_python.cpp
+++ b/src/idl_gen_python.cpp
@@ -2026,7 +2026,7 @@ class PythonGenerator : public BaseGenerator {
     const auto field_method = namer_.Method(field);
     const auto struct_var = namer_.Variable(struct_def);
     const EnumDef& enum_def = *field.value.type.enum_def;
-    auto union_type = namer_.Type(enum_def);
+    auto union_type = namer_.Function(enum_def);
 
     if (parser_.opts.include_dependence_headers) {
       union_type = namer_.NamespacedType(enum_def) + "." + union_type;
diff --git a/tests/MyGame/Example/NestedUnion/NestedUnionTest.py b/tests/MyGame/Example/NestedUnion/NestedUnionTest.py
index e3d68855add..b7b450a1fa8 100644
--- a/tests/MyGame/Example/NestedUnion/NestedUnionTest.py
+++ b/tests/MyGame/Example/NestedUnion/NestedUnionTest.py
@@ -93,7 +93,7 @@ def NestedUnionTestEnd(builder: flatbuffers.Builder) -> int:
 def End(builder: flatbuffers.Builder) -> int:
     return NestedUnionTestEnd(builder)
 
-import MyGame.Example.NestedUnion.Any
+import MyGame.Example.NestedUnion.Any_Data
 import MyGame.Example.NestedUnion.TestSimpleTableWithEnum
 import MyGame.Example.NestedUnion.Vec3
 try:
@@ -141,7 +141,7 @@ def _UnPack(self, nestedUnionTest):
         if self.name is not None:
             self.name = self.name.decode('utf-8')
         self.dataType = nestedUnionTest.DataType()
-        self.data = MyGame.Example.NestedUnion.Any.AnyCreator(self.dataType, nestedUnionTest.Data())
+        self.data = MyGame.Example.NestedUnion.Any_Data.AnyDataCreator(self.dataType, nestedUnionTest.Data())
         self.id = nestedUnionTest.Id()
 
     # NestedUnionTestT
diff --git a/tests/MyGame/Example/NestedUnion/NestedUnionTest.pyi b/tests/MyGame/Example/NestedUnion/NestedUnionTest.pyi
index 444bddac1fa..156ca0a2359 100644
--- a/tests/MyGame/Example/NestedUnion/NestedUnionTest.pyi
+++ b/tests/MyGame/Example/NestedUnion/NestedUnionTest.pyi
@@ -4,7 +4,7 @@ import flatbuffers
 import numpy as np
 
 import typing
-from MyGame.Example.NestedUnion.Any import Any
+from MyGame.Example.NestedUnion.Any_Data import Any_Data
 from MyGame.Example.NestedUnion.TestSimpleTableWithEnum import TestSimpleTableWithEnumT
 from MyGame.Example.NestedUnion.Vec3 import Vec3T
 from flatbuffers import table
@@ -18,18 +18,18 @@ class NestedUnionTest(object):
   def GetRootAsNestedUnionTest(cls, buf: bytes, offset: int) -> NestedUnionTest: ...
   def Init(self, buf: bytes, pos: int) -> None: ...
   def Name(self) -> str | None: ...
-  def DataType(self) -> typing.Literal[Any.NONE, Any.Vec3, Any.TestSimpleTableWithEnum]: ...
+  def DataType(self) -> typing.Literal[Any_Data.NONE, Any_Data.Vec3, Any_Data.TestSimpleTableWithEnum]: ...
   def Data(self) -> table.Table | None: ...
   def Id(self) -> int: ...
 class NestedUnionTestT(object):
   name: str | None
-  dataType: typing.Literal[Any.NONE, Any.Vec3, Any.TestSimpleTableWithEnum]
+  dataType: typing.Literal[Any_Data.NONE, Any_Data.Vec3, Any_Data.TestSimpleTableWithEnum]
   data: typing.Union[None, Vec3T, TestSimpleTableWithEnumT]
   id: int
   def __init__(
     self,
     name: str | None = ...,
-    dataType: typing.Literal[Any.NONE, Any.Vec3, Any.TestSimpleTableWithEnum] = ...,
+    dataType: typing.Literal[Any_Data.NONE, Any_Data.Vec3, Any_Data.TestSimpleTableWithEnum] = ...,
     data: typing.Union[None, Vec3T, TestSimpleTableWithEnumT] = ...,
     id: int = ...,
   ) -> None: ...
@@ -44,7 +44,7 @@ class NestedUnionTestT(object):
 def NestedUnionTestStart(builder: flatbuffers.Builder) -> None: ...
 def Start(builder: flatbuffers.Builder) -> None: ...
 def NestedUnionTestAddName(builder: flatbuffers.Builder, name: uoffset) -> None: ...
-def NestedUnionTestAddDataType(builder: flatbuffers.Builder, dataType: typing.Literal[Any.NONE, Any.Vec3, Any.TestSimpleTableWithEnum]) -> None: ...
+def NestedUnionTestAddDataType(builder: flatbuffers.Builder, dataType: typing.Literal[Any_Data.NONE, Any_Data.Vec3, Any_Data.TestSimpleTableWithEnum]) -> None: ...
 def NestedUnionTestAddData(builder: flatbuffers.Builder, data: uoffset) -> None: ...
 def NestedUnionTestAddId(builder: flatbuffers.Builder, id: int) -> None: ...
 def NestedUnionTestEnd(builder: flatbuffers.Builder) -> uoffset: ...
diff --git a/tests/nested_union_test.fbs b/tests/nested_union_test.fbs
index daa6048b566..74f49d425b9 100644
--- a/tests/nested_union_test.fbs
+++ b/tests/nested_union_test.fbs
@@ -25,11 +25,11 @@ table Vec3 {
   test3:Test;
 }
 
-union Any { Vec3, TestSimpleTableWithEnum }
+union Any_Data { Vec3, TestSimpleTableWithEnum }
 
 table NestedUnionTest {
   name:string;
-  data:Any;
+  data:Any_Data;
   id:short;
 }