diff --git a/IPython/frontend/html/notebook/static/css/notebook.css b/IPython/frontend/html/notebook/static/css/notebook.css
index adc5bff..4fa3196 100644
--- a/IPython/frontend/html/notebook/static/css/notebook.css
+++ b/IPython/frontend/html/notebook/static/css/notebook.css
@@ -389,6 +389,6 @@ pre, code, kbd, samp { white-space: pre-wrap; }
     font-family: monospace;
 }
 
-.render-error {
+.js-error {
     color: darkred;
 }
\ No newline at end of file
diff --git a/IPython/frontend/html/notebook/static/js/textcell.js b/IPython/frontend/html/notebook/static/js/textcell.js
index 40a3950..2fca686 100644
--- a/IPython/frontend/html/notebook/static/js/textcell.js
+++ b/IPython/frontend/html/notebook/static/js/textcell.js
@@ -223,9 +223,9 @@ var IPython = (function (IPython) {
             try {
                 this.set_rendered(html);
             } catch (e) {
-                console.log("Error rendering Markdown:");
+                console.log("Error running Javascript in Markdown:");
                 console.log(e);
-                this.set_rendered($("<div/>").addClass("render-error").html(
+                this.set_rendered($("<div/>").addClass("js-error").html(
                     "Error rendering Markdown!<br/>" + e.toString())
                 );
             }