diff --git a/app/helpers/reports_helper.rb b/app/helpers/reports_helper.rb
index fc4d0a0..7372633 100644
--- a/app/helpers/reports_helper.rb
+++ b/app/helpers/reports_helper.rb
@@ -31,6 +31,6 @@ module ReportsHelper
 
   def aggregate_link(data, criteria, *args)
     a = aggregate data, criteria
-    a > 0 ? link_to(a, *args) : '-'
+    a > 0 ? link_to(h(a), *args) : '-'
   end
 end