diff --git a/app/logical/post_query_builder.rb b/app/logical/post_query_builder.rb
index dd5a2f350..0984763fd 100644
--- a/app/logical/post_query_builder.rb
+++ b/app/logical/post_query_builder.rb
@@ -190,12 +190,12 @@ class PostQueryBuilder
     end
 
     if q[:commenter_id]
-      relation = relation.where(:id => Comment.where("creator_id = ?", q[:commenter_id]).select("post_id").uniq)
+      relation = relation.where(:id => Comment.where("creator_id = ?", q[:commenter_id]).select("post_id"))
       has_constraints!
     end
 
     if q[:noter_id]
-      relation = relation.where(:id => Note.where("creator_id = ?", q[:noter_id]).select("post_id").uniq)
+      relation = relation.where(:id => Note.where("creator_id = ?", q[:noter_id]).select("post_id"))
       has_constraints!
     end