diff --git a/app/services/hyrax/statistics/users/over_time.rb b/app/services/hyrax/statistics/users/over_time.rb
index d15771a23d..8f38faea4b 100644
--- a/app/services/hyrax/statistics/users/over_time.rb
+++ b/app/services/hyrax/statistics/users/over_time.rb
@@ -26,7 +26,9 @@ def query(date_string)
         end
 
         def point(date_string)
-          relation.where(query(date_string)).count
+          # convert the User::ActiveRecord_Relation to an array so that ".size" returns a number,
+          # instead of a hash of { user_id: size }
+          relation.where(query(date_string)).to_a.size
         end
       end
     end