diff --git a/library/core/src/mem/maybe_uninit.rs b/library/core/src/mem/maybe_uninit.rs
index 58315cb74f0a1..dca749043afa1 100644
--- a/library/core/src/mem/maybe_uninit.rs
+++ b/library/core/src/mem/maybe_uninit.rs
@@ -255,7 +255,10 @@ impl<T: Copy> Clone for MaybeUninit<T> {
 #[stable(feature = "maybe_uninit_debug", since = "1.41.0")]
 impl<T> fmt::Debug for MaybeUninit<T> {
     fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
-        f.pad(type_name::<Self>())
+        let full_name = type_name::<Self>();
+        // NB: this needs to be adjusted if `MaybeUninit` moves modules
+        let short_name = full_name.split_once("mem::maybe_uninit::").unwrap().1;
+        f.pad(short_name)
     }
 }