diff --git a/psiturk/psiturk_js/psiturk.js b/psiturk/psiturk_js/psiturk.js
index 10857cd15..8222db580 100644
--- a/psiturk/psiturk_js/psiturk.js
+++ b/psiturk/psiturk_js/psiturk.js
@@ -43,11 +43,13 @@ var PsiTurk = function(uniqueId, adServerLoc, mode) {
 			data: [],
 			questiondata: {},
 			eventdata: [],
-			useragent: ""
+			useragent: "",
+			mode: ""
 		},
 		
 		initialize: function() {
-			this.useragent = navigator.userAgent;
+			this.set({ useragent: navigator.userAgent });
+			this.set({ mode: this.mode });
 			this.addEvent('initialized', null);
 			this.addEvent('window_resize', [window.innerWidth, window.innerHeight]);