diff --git a/library/core/src/mem/mod.rs b/library/core/src/mem/mod.rs
index 74b198c4fdd41..4cf52042a57f6 100644
--- a/library/core/src/mem/mod.rs
+++ b/library/core/src/mem/mod.rs
@@ -1254,11 +1254,9 @@ impl<T> SizedTypeProperties for T {}
 ///
 /// Nested field accesses may be used, but not array indexes.
 ///
-/// Enum variants may be traversed as if they were fields. Variants themselves do
-/// not have an offset.
-///
-/// However, on stable only a single field name is supported, which blocks the use of
-/// enum support.
+/// If the nightly-only feature `offset_of_enum` is enabled,
+/// variants may be traversed as if they were fields.
+/// Variants themselves do not have an offset.
 ///
 /// Visibility is respected - all types and fields must be visible to the call site:
 ///