diff --git a/xml/System/Range.xml b/xml/System/Range.xml
index 4968f332167..9b40dcbe5e2 100644
--- a/xml/System/Range.xml
+++ b/xml/System/Range.xml
@@ -353,7 +353,7 @@ int[] subArray2 = someArray[1..^0];              // { 2, 3, 4, 5 }
 
 ## Remarks
 
-For performance reasons, this method does't validate `length` to ensure that it is not negative. It does ensure that `length` is within the current `Range` instance.
+For performance reasons, this method doesn't validate `length` to ensure that it is not negative. It does ensure that `length` is within the current `Range` instance.
 
           ]]></format>
         </remarks>