diff --git a/app/assets/javascripts/directives/validators.coffee b/app/assets/javascripts/directives/validators.coffee
index 71f19c80a..871b6e947 100644
--- a/app/assets/javascripts/directives/validators.coffee
+++ b/app/assets/javascripts/directives/validators.coffee
@@ -18,7 +18,7 @@ Application.Directives.directive 'url', [ ->
 
 
 Application.Directives.directive 'endpoint', [ ->
-  ENDPOINT_REGEXP = /^\/([-._~:?#\[\]@!$&'()*+,;=%\w]+\/?)*$/
+  ENDPOINT_REGEXP = /^\/?([-._~:?#\[\]@!$&'()*+,;=%\w]+\/?)*$/
   {
     require: 'ngModel'
     link: (scope, element, attributes, ctrl) ->