diff --git a/library/std/src/thread/mod.rs b/library/std/src/thread/mod.rs
index 707a55b6258..7d404aff30e 100644
--- a/library/std/src/thread/mod.rs
+++ b/library/std/src/thread/mod.rs
@@ -412,9 +412,9 @@ pub fn spawn<F, T>(self, f: F) -> io::Result<JoinHandle<T>>
     ///
     /// # Safety
     ///
-    /// The caller has to ensure that no references in the supplied thread closure
-    /// or its return type can outlive the spawned thread's lifetime. This can be
-    /// guaranteed in two ways:
+    /// The caller has to ensure that the spawned thread does not outlive any
+    /// references in the supplied thread closure and its return type.
+    /// This can be guaranteed in two ways:
     ///
     /// - ensure that [`join`][`JoinHandle::join`] is called before any referenced
     /// data is dropped