diff --git a/_posts/plotly_js/fundamentals/config-options/2015-09-24-config-opt-toImageButtonOptions.html b/_posts/plotly_js/fundamentals/config-options/2015-09-24-config-opt-toImageButtonOptions.html
index 688279133..3c0d963d2 100644
--- a/_posts/plotly_js/fundamentals/config-options/2015-09-24-config-opt-toImageButtonOptions.html
+++ b/_posts/plotly_js/fundamentals/config-options/2015-09-24-config-opt-toImageButtonOptions.html
@@ -26,7 +26,7 @@
 
 var config = {
   toImageButtonOptions: {
-    format: 'svg', // one of png, svg, jpeg, webp
+    format: 'svg', // one of png, svg, jpeg, webp, full-json
     filename: 'custom_image',
     height: 500,
     width: 700,