diff --git a/lib/apple_bar.rb b/lib/apple_bar.rb
index 7445c793..8249a296 100644
--- a/lib/apple_bar.rb
+++ b/lib/apple_bar.rb
@@ -31,7 +31,7 @@ class AppleBar
   end
 
   def mean_order_amount_per_job
-    (1/@global_avg).round
+    (1/@global_avg).round rescue 0
   end
 
   def apples