diff --git a/core/flyout.js b/core/flyout.js
index d8a64d94a..52027e428 100644
--- a/core/flyout.js
+++ b/core/flyout.js
@@ -806,7 +806,7 @@ Blockly.Flyout.prototype.onMouseMoveBlock_ = function(e) {
      Safari Mobile 6.0 and Chrome for Android 18.0 fire rogue mousemove events
      on certain touch actions. Ignore events with these signatures.
      This may result in a one-pixel blind spot in other browsers,
-     but this shouldn't be noticable. */
+     but this shouldn't be noticeable. */
     e.stopPropagation();
     return;
   }