diff --git a/app/logical/post_query_builder.rb b/app/logical/post_query_builder.rb
index ca76764fa..a3844fc5e 100644
--- a/app/logical/post_query_builder.rb
+++ b/app/logical/post_query_builder.rb
@@ -246,6 +246,12 @@ class PostQueryBuilder
       has_constraints!
     end
 
+    if q[:child] == "none"
+      relation = relation.where("posts.has_children = FALSE")
+    elsif q[:child] == "any"
+      relation = relation.where("posts.has_children = TRUE")
+    end
+
     if q[:rating] =~ /^q/
       relation = relation.where("posts.rating = 'q'")
     elsif q[:rating] =~ /^s/
diff --git a/app/models/tag.rb b/app/models/tag.rb
index 09c3ce042..9b1117f16 100644
--- a/app/models/tag.rb
+++ b/app/models/tag.rb
@@ -1,5 +1,5 @@
 class Tag < ActiveRecord::Base
-  METATAGS = "-user|user|-approver|approver|commenter|comm|noter|-pool|pool|-fav|fav|ordfav|sub|md5|-rating|rating|-locked|locked|width|height|mpixels|score|favcount|filesize|source|-source|id|-id|date|age|order|-status|status|tagcount|gentags|arttags|chartags|copytags|parent|-parent|pixiv_id|pixiv"
+  METATAGS = "-user|user|-approver|approver|commenter|comm|noter|-pool|pool|-fav|fav|ordfav|sub|md5|-rating|rating|-locked|locked|width|height|mpixels|score|favcount|filesize|source|-source|id|-id|date|age|order|-status|status|tagcount|gentags|arttags|chartags|copytags|parent|-parent|child|pixiv_id|pixiv"
   attr_accessible :category, :as => [:moderator, :janitor, :contributor, :gold, :member, :anonymous, :default, :builder, :admin]
   attr_accessible :is_locked, :as => [:moderator, :janitor, :admin]
   has_one :wiki_page, :foreign_key => "title", :primary_key => "name"
@@ -474,6 +474,9 @@ class Tag < ActiveRecord::Base
           when "-parent"
             q[:parent_neg] = $2.downcase
 
+          when "child"
+            q[:child] = $2.downcase
+
           when "order"
             q[:order] = $2.downcase