diff --git a/apple2js.html b/apple2js.html
index 410a874..7ab66cc 100644
--- a/apple2js.html
+++ b/apple2js.html
@@ -83,7 +83,7 @@
       <div style="clear: both"></div>
     </div>
     <div class="inset">
-      <div id="khz" onclick="Apple2.togglShowFPS()">0KHz</div>
+      <div id="khz" onclick="Apple2.toggleShowFPS()">0KHz</div>
       <button id="pause-run" onclick="Apple2.pauseRun()" title="Pause/Run">
         <i class="fas fa-pause"></i>
       </button>