diff --git a/experiment/fiction.js b/experiment/fiction.js
index 59a0670..d290df0 100644
--- a/experiment/fiction.js
+++ b/experiment/fiction.js
@@ -149,6 +149,8 @@ var fiction_showimage1 = {
     on_finish: function (data) {
         data.trial_number = fiction_trialnumber
         fiction_trialnumber += 1
+        window_width = window.innerWidth
+        window_height = window.innerHeight
     },
     // Enable webgazer
     extensions: [