diff --git a/docs/documentation/customize/concepts.html b/docs/documentation/customize/concepts.html
index ade9fc8b..0cc9ed41 100644
--- a/docs/documentation/customize/concepts.html
+++ b/docs/documentation/customize/concepts.html
@@ -37,7 +37,7 @@ breadcrumb:
   </ul>
 
   <p>
-    Since these variables carry the <code>!default</code> flat, they can be assigned a <strong>new value</strong> either before or after having been imported.
+    Since these variables carry the <code>!default</code> flag, they can be assigned a <strong>new value</strong> either before or after having been imported.
   </p>
 </div>