diff --git a/app/ui.js b/app/ui.js
index f6615674..5f0d403e 100644
--- a/app/ui.js
+++ b/app/ui.js
@@ -1432,7 +1432,7 @@ var UI = {
         document.getElementById('noVNC_keyboard_button')
             .classList.add("noVNC_selected");
         if (UI.rfb) {
-            UI.rfb.set_focus_on_click(false);
+            UI.rfb.focusOnClick = false;
         }
     },
 
@@ -1440,7 +1440,7 @@ var UI = {
         document.getElementById('noVNC_keyboard_button')
             .classList.remove("noVNC_selected");
         if (UI.rfb) {
-            UI.rfb.set_focus_on_click(true);
+            UI.rfb.focusOnClick = true;
         }
     },
 
diff --git a/core/rfb.js b/core/rfb.js
index 3d12ae4b..9f661ed2 100644
--- a/core/rfb.js
+++ b/core/rfb.js
@@ -442,7 +442,7 @@ RFB.prototype = {
             return;
         }
 
-        if (!this._focus_on_click) {
+        if (!this.focusOnClick) {
             return;
         }