diff --git a/config/initializers/cost_centers.rb b/config/initializers/cost_centers.rb
index 1714eda..dcb80c6 100644
--- a/config/initializers/cost_centers.rb
+++ b/config/initializers/cost_centers.rb
@@ -13,9 +13,13 @@ def load_from_s3(bucket, key)
   return data
 end
 
+def load_dummy_cost_centres()
+  File.read(File.join(Rails.root, 'config', 'cost_centre_fixture.csv'))
+end
+
 def get_cost_centre_data()
   if Rails.env.development?
-    return File.read(File.join(Rails.root, 'config', 'cost_centre_fixture.csv'))
+    return load_dummy_cost_centres()
   end
 
   begin
@@ -28,4 +32,7 @@ def get_cost_centre_data()
   end
 end
 
-COST_CENTRES = CostCentreReader.new(get_cost_centre_data())
+
+if defined?(Rails::Server)
+  COST_CENTRES = CostCentreReader.new(get_cost_centre_data())
+end