diff --git a/src/viewer.js b/src/viewer.js
index 9ea2caed..0ec5b19e 100644
--- a/src/viewer.js
+++ b/src/viewer.js
@@ -236,6 +236,7 @@ $.Viewer = function( options ) {
         style.position = "absolute";
         style.top      = "0px";
         style.left     = "0px";
+        style.resize   = "none";
     }(  this.keyboardCommandArea.style ));
 
     this.container.insertBefore( this.canvas, this.container.firstChild );