diff --git a/README.md b/README.md
index e7b3ecb..3b89172 100644
--- a/README.md
+++ b/README.md
@@ -174,6 +174,8 @@ docker run --name webssh2 -d -p 2222:2222 -v `pwd`/app/config.json:/usr/src/conf
 
 * **terminal.bellStyle** - _string_ - Style of terminal bell: (sound|none). **Default:** "sound".
 
+* **terminal.fontSize** - _integer_ - Size of terminal font. **Default:** 14.
+
 * **header.text** - _string_ - Specify header text, defaults to `My Header` but may also be set to `null`. When set to `null` no header bar will be displayed on the client.
 
 * **header.background** - _string_ - Header background, defaults to `green`.
diff --git a/app/config.json.sample b/app/config.json.sample
index 2084e26..26f8c39 100644
--- a/app/config.json.sample
+++ b/app/config.json.sample
@@ -29,7 +29,8 @@
     "cursorBlink": true,
     "scrollback": 10000,
     "tabStopWidth": 8,
-    "bellStyle": "sound"
+    "bellStyle": "sound",
+    "fontSize": 14
   },
   "header": {
     "text": null,