diff --git a/library/core/src/slice/mod.rs b/library/core/src/slice/mod.rs
index 5866a88881970..fdf265cb3bfb5 100644
--- a/library/core/src/slice/mod.rs
+++ b/library/core/src/slice/mod.rs
@@ -642,8 +642,8 @@ impl<T> [T] {
     ///
     /// You can think of this like `.get(index).unwrap_unchecked()`.  It's UB
     /// to call `.get_unchecked(len)`, even if you immediately convert to a
-    /// pointer.  And it's UB to call `.get_unchecked(..len +1)` or
-    /// `.get_unchecked(..=len)` similar.
+    /// pointer.  And it's UB to call `.get_unchecked(..len +1)`,
+    /// `.get_unchecked(..=len)`, or similar.
     ///
     /// [`get`]: slice::get
     /// [undefined behavior]: https://doc.rust-lang.org/reference/behavior-considered-undefined.html
@@ -682,8 +682,8 @@ impl<T> [T] {
     ///
     /// You can think of this like `.get_mut(index).unwrap_unchecked()`.  It's
     /// UB to call `.get_unchecked_mut(len)`, even if you immediately convert
-    /// to a pointer.  And it's UB to call `.get_unchecked_mut(..len +1)` or
-    /// `.get_unchecked_mut(..=len)` similar.
+    /// to a pointer.  And it's UB to call `.get_unchecked_mut(..len +1)`,
+    /// `.get_unchecked_mut(..=len)`, or similar.
     ///
     /// [`get_mut`]: slice::get_mut
     /// [undefined behavior]: https://doc.rust-lang.org/reference/behavior-considered-undefined.html