diff --git a/IPython/html/tests/casperjs/util.js b/IPython/html/tests/casperjs/util.js
index e8d13a4..392fb33 100644
--- a/IPython/html/tests/casperjs/util.js
+++ b/IPython/html/tests/casperjs/util.js
@@ -109,7 +109,7 @@ casper.notebook_test = function(test) {
     });
 };
 
-casper.options.waitTimeout=5000
+casper.options.waitTimeout=10000
 casper.on('waitFor.timeout', function onWaitForTimeout(timeout) {
     this.echo("Timeout for " + casper.get_notebook_server());
     this.echo("Is the notebook server running?");