diff --git a/grunt.js b/grunt.js
index f162e03ce8..f65812623b 100644
--- a/grunt.js
+++ b/grunt.js
@@ -119,7 +119,7 @@ module.exports = function( grunt ) {
}, {
authUsername: "jquery",
authToken: grunt.file.readJSON( configFile ).jquery.authToken,
- jobName: 'jQuery commit #' + commit + '',
+ jobName: 'jQuery commit #' + commit.substr( 0, 10 ) + '',
runMax: 4,
"runNames[]": tests,
"runUrls[]": testUrls,