diff --git a/extensions/positron-python/pythonFiles/positron/positron_ipykernel/plots.py b/extensions/positron-python/pythonFiles/positron/positron_ipykernel/plots.py
index 3000ddc3d6a..6ab50a273b0 100644
--- a/extensions/positron-python/pythonFiles/positron/positron_ipykernel/plots.py
+++ b/extensions/positron-python/pythonFiles/positron/positron_ipykernel/plots.py
@@ -98,12 +98,12 @@ def handle_msg(self, msg: CommMessage[PlotBackendMessageContent], raw_msg: JsonR
             pixel_ratio = request.params.pixel_ratio or 1.0
 
             if width_px != 0 and height_px != 0:
-                format_dict, md_dict = self._resize_pickled_figure(
+                format_dict = self._resize_pickled_figure(
                     pickled, width_px, height_px, pixel_ratio
                 )
                 data = format_dict["image/png"]
                 output = PlotResult(data=data, mime_type="image/png").dict()
-                figure_comm.send_result(data=output, metadata=md_dict)
+                figure_comm.send_result(data=output, metadata={"mime_type": "image/png"})
 
         else:
             logger.warning(f"Unhandled request: {request}")
@@ -213,7 +213,7 @@ def _resize_pickled_figure(
 
         if was_interactive:
             plt.ion()
-        return (format_dict, {})
+        return format_dict
 
     def _is_figure_empty(self, figure):
         children = figure.get_children()