diff --git a/app/models/query.rb b/app/models/query.rb
index 0dec7d211..c3311ffbf 100644
--- a/app/models/query.rb
+++ b/app/models/query.rb
@@ -51,7 +51,7 @@ class QueryColumn
 
   # Returns true if the column is sortable, otherwise false
   def sortable?
-    !@sortable.nil?
+    !@sortable.blank?
   end
 
   def sortable