diff --git a/lib/workless/scalers/base.rb b/lib/workless/scalers/base.rb
index d2b3315..b0bc2d4 100644
--- a/lib/workless/scalers/base.rb
+++ b/lib/workless/scalers/base.rb
@@ -9,7 +9,11 @@ def self.jobs
           if Rails.version >= "3.0.0"
             Delayed::Job.where(:failed_at => nil)
           else
-            Delayed::Job.all(:conditions => { :failed_at => nil })
+            if ENV['MONGOHQ_URL'].present?
+              Delayed::Job.all
+            else
+              Delayed::Job.all(:conditions => { :failed_at => nil })
+            end
           end
         end
       end