diff --git a/crates/red_knot_python_semantic/resources/mdtest/annotations/callable.md b/crates/red_knot_python_semantic/resources/mdtest/annotations/callable.md
index b84bfe41a54bce..8ca50c5b692c2d 100644
--- a/crates/red_knot_python_semantic/resources/mdtest/annotations/callable.md
+++ b/crates/red_knot_python_semantic/resources/mdtest/annotations/callable.md
@@ -152,6 +152,21 @@ def _(c: Callable[[int, str], int]):
     reveal_type(c)  # revealed: (int, str, /) -> int
 ```
 
+## Union
+
+```py
+from typing import Callable, Union
+
+def _(
+    c: Callable[[Union[int, str]], int] | None,
+    d: None | Callable[[Union[int, str]], int],
+    e: None | Callable[[Union[int, str]], int] | int,
+):
+    reveal_type(c)  # revealed: ((int | str, /) -> int) | None
+    reveal_type(d)  # revealed: None | ((int | str, /) -> int)
+    reveal_type(e)  # revealed: None | ((int | str, /) -> int) | int
+```
+
 ## Nested
 
 A nested `Callable` as one of the parameter types:
diff --git a/crates/red_knot_python_semantic/src/types/display.rs b/crates/red_knot_python_semantic/src/types/display.rs
index 2411c4e8628904..d99d74e3d6fcc3 100644
--- a/crates/red_knot_python_semantic/src/types/display.rs
+++ b/crates/red_knot_python_semantic/src/types/display.rs
@@ -292,7 +292,14 @@ impl Display for DisplayUnionType<'_> {
                     db: self.db,
                 });
             } else {
-                join.entry(&element.display(self.db));
+                if let Type::Callable(
+                    CallableType::General(_) | CallableType::MethodWrapperDunderGet(_),
+                ) = element
+                {
+                    join.entry(&format_args!("({})", element.display(self.db)));
+                } else {
+                    join.entry(&element.display(self.db));
+                }
             }
         }