diff --git a/plugins/jspsych-video-button-response.js b/plugins/jspsych-video-button-response.js
index 1a83236437..9e7d8c91ac 100644
--- a/plugins/jspsych-video-button-response.js
+++ b/plugins/jspsych-video-button-response.js
@@ -272,7 +272,7 @@ jsPsych.plugins["video-button-response"] = (function() {
       // gather the data to store for the trial
       var trial_data = {
         "rt": response.rt,
-        "stimulus": trial.stimulus,
+        "stimulus": JSON.stringify(trial.stimulus),
         "button_pressed": response.button
       };
 
diff --git a/plugins/jspsych-video-keyboard-response.js b/plugins/jspsych-video-keyboard-response.js
index e3ae4cf167..8c794eddea 100644
--- a/plugins/jspsych-video-keyboard-response.js
+++ b/plugins/jspsych-video-keyboard-response.js
@@ -228,7 +228,7 @@ jsPsych.plugins["video-keyboard-response"] = (function() {
       // gather the data to store for the trial
       var trial_data = {
         "rt": response.rt,
-        "stimulus": trial.stimulus,
+        "stimulus": JSON.stringify(trial.stimulus),
         "key_press": response.key
       };
 
diff --git a/plugins/jspsych-video-slider-response.js b/plugins/jspsych-video-slider-response.js
index 4e60d93799..fa7a9601b6 100644
--- a/plugins/jspsych-video-slider-response.js
+++ b/plugins/jspsych-video-slider-response.js
@@ -318,7 +318,7 @@ jsPsych.plugins["video-slider-response"] = (function() {
       // gather the data to store for the trial
       var trial_data = {
         "rt": response.rt,
-        "stimulus": trial.stimulus,
+        "stimulus": JSON.stringify(trial.stimulus),
         "start": trial.start,
         "slider_start": trial.slider_start,
         "response": response.response