diff --git a/index.html b/index.html
index e8712e2..0bbb11e 100644
--- a/index.html
+++ b/index.html
@@ -142,7 +142,7 @@ <h3 id="timing-is-key">Timing is Key</h3>
         “permissive hold”), and then rely on mitigating measures and fine timing adjustments to limit
         the number of typos.</p>
       <p>In our experience, this doesn’t work reliably for most users and never will, because
-        <strong>homerow-mods and thumb modifiers have two mutually excusive goals</strong>.
+        <strong>homerow-mods and thumb modifiers have two mutually exclusive goals</strong>.
         Instead, Selenium uses three distinct kinds of hold-tap behaviors that define which
         action takes priority and timings:</p>
       <table>