diff --git a/app/models/build.coffee b/app/models/build.coffee
index 5f3c3c4a..61e5609f 100644
--- a/app/models/build.coffee
+++ b/app/models/build.coffee
@@ -89,7 +89,7 @@ Build = Model.extend DurationCalculations,
   ).property('rawConfigKeys.length')
 
   canCancel: (->
-    @get('jobs').filter( (j) -> j.get('canCancel') ).get('length') > 0
+    @get('jobs').filterBy('canCancel').length
   ).property('jobs.@each.canCancel')
 
   cancel: (->