diff --git a/include/command-line-options.php b/include/command-line-options.php
index 44665d47..f5ccf0ef 100644
--- a/include/command-line-options.php
+++ b/include/command-line-options.php
@@ -299,7 +299,7 @@
 position relative to each other can be controlled by the current <a
 href="#gravity">-gravity</a> setting. </p>
 
-<p>For more flexible options, including the abiity to add space between images,
+<p>For more flexible options, including the ability to add space between images,
 use <a href="#smush">-smush</a>.</p>
 
 <div style="margin: auto;">