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-rw-r--r--library/core/src/fmt/mod.rs2
1 files changed, 1 insertions, 1 deletions
diff --git a/library/core/src/fmt/mod.rs b/library/core/src/fmt/mod.rs
index 6c3bb7229e5..a3b3ced779f 100644
--- a/library/core/src/fmt/mod.rs
+++ b/library/core/src/fmt/mod.rs
@@ -2598,7 +2598,7 @@ impl Debug for () {
 #[stable(feature = "rust1", since = "1.0.0")]
 impl<T: ?Sized> Debug for PhantomData<T> {
     fn fmt(&self, f: &mut Formatter<'_>) -> Result {
-        f.debug_struct("PhantomData").finish()
+        write!(f, "PhantomData<{}>", crate::any::type_name::<T>())
     }
 }