diff --git a/crates/ty_python_semantic/resources/mdtest/binary/classes.md b/crates/ty_python_semantic/resources/mdtest/binary/classes.md
index 7ae4c23e60..db42286c84 100644
--- a/crates/ty_python_semantic/resources/mdtest/binary/classes.md
+++ b/crates/ty_python_semantic/resources/mdtest/binary/classes.md
@@ -13,7 +13,7 @@ python-version = "3.10"
 class A: ...
 class B: ...
 
-reveal_type(A | B)  # revealed: UnionType
+reveal_type(A | B)  # revealed: types.UnionType
 ```
 
 ## Union of two classes (prior to 3.10)
@@ -43,14 +43,14 @@ class A: ...
 class B: ...
 
 def _(sub_a: type[A], sub_b: type[B]):
-    reveal_type(A | sub_b)  # revealed: UnionType
-    reveal_type(sub_a | B)  # revealed: UnionType
-    reveal_type(sub_a | sub_b)  # revealed: UnionType
+    reveal_type(A | sub_b)  # revealed: types.UnionType
+    reveal_type(sub_a | B)  # revealed: types.UnionType
+    reveal_type(sub_a | sub_b)  # revealed: types.UnionType
 
 class C[T]: ...
 class D[T]: ...
 
-reveal_type(C | D)  # revealed: UnionType
+reveal_type(C | D)  # revealed: types.UnionType
 
-reveal_type(C[int] | D[str])  # revealed: UnionType
+reveal_type(C[int] | D[str])  # revealed: types.UnionType
 ```
diff --git a/crates/ty_python_semantic/resources/mdtest/implicit_type_aliases.md b/crates/ty_python_semantic/resources/mdtest/implicit_type_aliases.md
index 904921e7b3..a3e0319f5a 100644
--- a/crates/ty_python_semantic/resources/mdtest/implicit_type_aliases.md
+++ b/crates/ty_python_semantic/resources/mdtest/implicit_type_aliases.md
@@ -58,24 +58,24 @@ AnyOrNever = Any | Never
 UnknownOrInt = Unknown | int
 IntOrUnknown = int | Unknown
 
-reveal_type(IntOrStr)  # revealed: UnionType
-reveal_type(IntOrStrOrBytes1)  # revealed: UnionType
-reveal_type(IntOrStrOrBytes2)  # revealed: UnionType
-reveal_type(IntOrStrOrBytes3)  # revealed: UnionType
-reveal_type(IntOrStrOrBytes4)  # revealed: UnionType
-reveal_type(BytesOrIntOrStr)  # revealed: UnionType
-reveal_type(IntOrNone)  # revealed: UnionType
-reveal_type(NoneOrInt)  # revealed: UnionType
-reveal_type(IntOrStrOrNone)  # revealed: UnionType
-reveal_type(NoneOrIntOrStr)  # revealed: UnionType
-reveal_type(IntOrAny)  # revealed: UnionType
-reveal_type(AnyOrInt)  # revealed: UnionType
-reveal_type(NoneOrAny)  # revealed: UnionType
-reveal_type(AnyOrNone)  # revealed: UnionType
-reveal_type(NeverOrAny)  # revealed: UnionType
-reveal_type(AnyOrNever)  # revealed: UnionType
-reveal_type(UnknownOrInt)  # revealed: UnionType
-reveal_type(IntOrUnknown)  # revealed: UnionType
+reveal_type(IntOrStr)  # revealed: types.UnionType
+reveal_type(IntOrStrOrBytes1)  # revealed: types.UnionType
+reveal_type(IntOrStrOrBytes2)  # revealed: types.UnionType
+reveal_type(IntOrStrOrBytes3)  # revealed: types.UnionType
+reveal_type(IntOrStrOrBytes4)  # revealed: types.UnionType
+reveal_type(BytesOrIntOrStr)  # revealed: types.UnionType
+reveal_type(IntOrNone)  # revealed: types.UnionType
+reveal_type(NoneOrInt)  # revealed: types.UnionType
+reveal_type(IntOrStrOrNone)  # revealed: types.UnionType
+reveal_type(NoneOrIntOrStr)  # revealed: types.UnionType
+reveal_type(IntOrAny)  # revealed: types.UnionType
+reveal_type(AnyOrInt)  # revealed: types.UnionType
+reveal_type(NoneOrAny)  # revealed: types.UnionType
+reveal_type(AnyOrNone)  # revealed: types.UnionType
+reveal_type(NeverOrAny)  # revealed: types.UnionType
+reveal_type(AnyOrNever)  # revealed: types.UnionType
+reveal_type(UnknownOrInt)  # revealed: types.UnionType
+reveal_type(IntOrUnknown)  # revealed: types.UnionType
 
 def _(
     int_or_str: IntOrStr,
@@ -180,7 +180,7 @@ def _(my_list: MyList[int]):
 
 ListOrTuple = list[T] | tuple[T, ...]
 
-reveal_type(ListOrTuple)  # revealed: UnionType
+reveal_type(ListOrTuple)  # revealed: types.UnionType
 
 def _(list_or_tuple: ListOrTuple[int]):
     reveal_type(list_or_tuple)  # revealed: @Todo(Generic specialization of types.UnionType)
diff --git a/crates/ty_python_semantic/resources/mdtest/mro.md b/crates/ty_python_semantic/resources/mdtest/mro.md
index 81a1cfe667..761fb9892d 100644
--- a/crates/ty_python_semantic/resources/mdtest/mro.md
+++ b/crates/ty_python_semantic/resources/mdtest/mro.md
@@ -301,7 +301,7 @@ class B: ...
 
 EitherOr = A | B
 
-# error: [invalid-base] "Invalid class base with type `UnionType`"
+# error: [invalid-base] "Invalid class base with type `types.UnionType`"
 class Foo(EitherOr): ...
 ```
 
diff --git a/crates/ty_python_semantic/src/types.rs b/crates/ty_python_semantic/src/types.rs
index 60da8a8f72..bdc859b095 100644
--- a/crates/ty_python_semantic/src/types.rs
+++ b/crates/ty_python_semantic/src/types.rs
@@ -7811,7 +7811,7 @@ impl<'db> KnownInstanceType<'db> {
                             constraints.display(self.db)
                         )
                     }
-                    KnownInstanceType::UnionType(_) => f.write_str("UnionType"),
+                    KnownInstanceType::UnionType(_) => f.write_str("types.UnionType"),
                 }
             }
         }