diff --git a/static/js/app.js b/static/js/app.js
index d6831427d..b20c4b082 100644
--- a/static/js/app.js
+++ b/static/js/app.js
@@ -1,5 +1,5 @@
 var TEAM_PATTERN = '^[a-zA-Z][a-zA-Z0-9]+$';
-var ROBOT_PATTERN = '^[a-zA-Z][a-zA-Z0-9]+$';
+var ROBOT_PATTERN = '^[a-zA-Z][a-zA-Z0-9]{3,29}$';
 
 function getRestUrl(args) {
   var url = '';