diff --git a/docs/documentation/columns/sizes.html b/docs/documentation/columns/sizes.html
index 72af11fa..1ae7058d 100644
--- a/docs/documentation/columns/sizes.html
+++ b/docs/documentation/columns/sizes.html
@@ -79,7 +79,7 @@ doc-subtab: sizes
     <hr>
 
     <div class="content">
-      <p>If you want to change the <strong>size</strong> of a single column, you can use one the following classes:</p>
+      <p>If you want to change the <strong>size</strong> of a single column, you can use one of the following classes:</p>
       <ul>
         <li>
           <code>is-three-quarters</code>