diff --git a/guides/source/layouts_and_rendering.md b/guides/source/layouts_and_rendering.md
index c3cde49630..e5a54c450d 100644
--- a/guides/source/layouts_and_rendering.md
+++ b/guides/source/layouts_and_rendering.md
@@ -255,7 +255,7 @@ extension for the layout file.
 
 #### Rendering HTML
 
-You can send a HTML string back to the browser by using the `:html` option to
+You can send an HTML string back to the browser by using the `:html` option to
 `render`:
 
 ```ruby