diff --git a/plotly/offline/offline.py b/plotly/offline/offline.py
index 6ab50476448..6f56fb0b1d0 100644
--- a/plotly/offline/offline.py
+++ b/plotly/offline/offline.py
@@ -205,7 +205,8 @@ def _plot_html(figure_or_data, config, validate, default_width,
         'displaylogo',
         'plotGlPixelRatio',
         'setBackground',
-        'topojsonURL'
+        'topojsonURL',
+        'toImageButtonOptions'
     )
 
     config_clean = dict((k, config[k]) for k in configkeys if k in config)