diff --git a/app/services/report.rb b/app/services/report.rb
index dbfb50b4..5a6de19b 100644
--- a/app/services/report.rb
+++ b/app/services/report.rb
@@ -29,7 +29,7 @@ def filename
   end
 
   def data
-    report.csv
+    @data ||= report.csv
   end
 
 private