diff --git a/tests/unittest_brain.py b/tests/unittest_brain.py
index d4e6a7cfaf..10420a542d 100644
--- a/tests/unittest_brain.py
+++ b/tests/unittest_brain.py
@@ -1238,7 +1238,7 @@ def check_metaclass(node: nodes.ClassDef):
         T = TypeVar("T")
         MutableSet[T]
 
-        class Derived(MutableSet[T]):
+        class Derived1(MutableSet[T]):
             pass
         """
         )
@@ -1247,7 +1247,7 @@ class Derived(MutableSet[T]):
         assertEqualMro(
             inferred,
             [
-                "Derived",
+                "Derived1",
                 "MutableSet",
                 "Set",
                 "Collection",
@@ -1261,7 +1261,7 @@ class Derived(MutableSet[T]):
         node = builder.extract_node(
             """
         import typing
-        class Derived(typing.OrderedDict[int, str]):
+        class Derived2(typing.OrderedDict[int, str]):
             pass
         """
         )
@@ -1270,7 +1270,7 @@ class Derived(typing.OrderedDict[int, str]):
         assertEqualMro(
             inferred,
             [
-                "Derived",
+                "Derived2",
                 "OrderedDict",
                 "dict",
                 "object",
@@ -1280,7 +1280,7 @@ class Derived(typing.OrderedDict[int, str]):
         node = builder.extract_node(
             """
         import typing
-        class Derived(typing.Pattern[str]):
+        class Derived3(typing.Pattern[str]):
             pass
         """
         )
@@ -1289,7 +1289,7 @@ class Derived(typing.Pattern[str]):
         assertEqualMro(
             inferred,
             [
-                "Derived",
+                "Derived3",
                 "Pattern",
                 "object",
             ],