diff --git a/jupyter-org-client.el b/jupyter-org-client.el
index 11587ef0..1cfe1c06 100644
--- a/jupyter-org-client.el
+++ b/jupyter-org-client.el
@@ -1715,8 +1715,9 @@ EL is an Org element with the properties
                          (delete-region (point)
                                         (let ((pos (next-single-property-change
                                                     (point) 'jupyter-pandoc)))
-                                          (if pos (1+ pos)
+                                          (if pos (min (1+ pos) (point-max))
                                             (point-max))))
+                         (message "PANDOC: %s" to-string)
                          (insert to-string)))))))
            (proc (jupyter-org--start-pandoc-conversion el cb)))
     (jupyter-org-raw-string