diff --git a/content/manuals/engine/swarm/secrets.md b/content/manuals/engine/swarm/secrets.md
index 00a5116ffa8..98e3d94ae35 100644
--- a/content/manuals/engine/swarm/secrets.md
+++ b/content/manuals/engine/swarm/secrets.md
@@ -301,7 +301,7 @@ This example assumes that you have PowerShell installed.
     <html lang="en">
       <head><title>Hello Docker</title></head>
       <body>
-        <p>Hello Docker! You have deployed a HTML page.</p>
+        <p>Hello Docker! You have deployed an HTML page.</p>
       </body>
     </html>
     ```
