diff --git a/library/std/src/thread/mod.rs b/library/std/src/thread/mod.rs
index 88dabfa8d22b8..1fdde17d0fd41 100644
--- a/library/std/src/thread/mod.rs
+++ b/library/std/src/thread/mod.rs
@@ -1442,7 +1442,7 @@ impl<T> JoinHandle<T> {
         self.0.join()
     }
 
-    /// Checks if the the associated thread is still running its main function.
+    /// Checks if the associated thread is still running its main function.
     ///
     /// This might return `false` for a brief moment after the thread's main
     /// function has returned, but before the thread itself has stopped running.
diff --git a/library/std/src/thread/scoped.rs b/library/std/src/thread/scoped.rs
index 35e3dba54115d..cda86a48b2430 100644
--- a/library/std/src/thread/scoped.rs
+++ b/library/std/src/thread/scoped.rs
@@ -274,7 +274,7 @@ impl<'scope, T> ScopedJoinHandle<'scope, T> {
         self.0.join()
     }
 
-    /// Checks if the the associated thread is still running its main function.
+    /// Checks if the associated thread is still running its main function.
     ///
     /// This might return `false` for a brief moment after the thread's main
     /// function has returned, but before the thread itself has stopped running.