diff --git a/library/core/src/pin.rs b/library/core/src/pin.rs
index 633e96eb7d811..b73cd046e5a65 100644
--- a/library/core/src/pin.rs
+++ b/library/core/src/pin.rs
@@ -795,7 +795,7 @@ impl<T: ?Sized> Pin<&'static T> {
     }
 }
 
-impl<T: ?Sized> Pin<&'static T> {
+impl<T: ?Sized> Pin<&'static mut T> {
     /// Get a pinned mutable reference from a static mutable reference.
     ///
     /// This is safe, because `T` is borrowed for the `'static` lifetime, which