From 8657d99d9fea502c4bf4220eaefe704e44f356f5 Mon Sep 17 00:00:00 2001
From: Thomas Kluyver <thomas@kluyver.me.uk>
Date: Thu, 18 Jan 2018 17:52:50 +0000
Subject: [PATCH] Fix output prompt when execution_count missing.

Closes gh-3235
---
 notebook/static/notebook/js/outputarea.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/notebook/static/notebook/js/outputarea.js b/notebook/static/notebook/js/outputarea.js
index 219cee29f4..3de2683360 100644
--- a/notebook/static/notebook/js/outputarea.js
+++ b/notebook/static/notebook/js/outputarea.js
@@ -471,7 +471,7 @@ define([
     };
 
     OutputArea.output_prompt_classical = function(prompt_value) {
-        return $('<bdi>').text(i18n.msg.sprintf(i18n.msg._('Out[%d]:'),prompt_value));
+        return $('<bdi>').text(i18n.msg.sprintf(i18n.msg._('Out[%s]:'),prompt_value));
     };
 
     OutputArea.output_prompt_function = OutputArea.output_prompt_classical;