diff --git a/js/gui.js b/js/gui.js
index 4e187037..4010ddf1 100644
--- a/js/gui.js
+++ b/js/gui.js
@@ -548,6 +548,10 @@ GUI_control.prototype.alert = function(message) {
     dialog.showMessageBoxSync({ message: message, icon: "./images/inav_icon_128.png" });
 }
 
+GUI_control.prototype.confirm = function(message) {
+    return dialog.showMessageBoxSync({ message: message, icon: "./images/inav_icon_128.png", buttons: ["Yes", "No"]}) == 0;
+}
+
 // initialize object into GUI variable
 var GUI = new GUI_control();
 
diff --git a/tabs/mission_control.js b/tabs/mission_control.js
index 56c9a3cb..0fce8675 100644
--- a/tabs/mission_control.js
+++ b/tabs/mission_control.js
@@ -3436,7 +3436,7 @@ TABS.mission_control.initialize = function (callback) {
                 return;
             }
             
-            if (confirm(i18n.getMessage("missionGeozoneReboot"))) {            
+            if (GUI.confirm(i18n.getMessage("missionGeozoneReboot"))) {            
                 $(event.currentTarget).addClass('disabled');
                 GUI.log('Start of sending Geozones');
                 mspHelper.saveGeozones();