diff --git a/app/logical/post_query_builder.rb b/app/logical/post_query_builder.rb
index bde7573fb..456e6d5b4 100644
--- a/app/logical/post_query_builder.rb
+++ b/app/logical/post_query_builder.rb
@@ -256,9 +256,9 @@ class PostQueryBuilder
     when "-noter"
       user_subquery_matches(NoteVersion.unscoped.where(version: 1), value, field: :updater).negate
     when "noteupdater"
-      user_subquery_matches(NoteVersion.unscoped, value, field: :updater).negate
-    when "-noteupdater"
       user_subquery_matches(NoteVersion.unscoped, value, field: :updater)
+    when "-noteupdater"
+      user_subquery_matches(NoteVersion.unscoped, value, field: :updater).negate
     when "upvoter", "upvote"
       user_subquery_matches(PostVote.positive.visible(CurrentUser.user), value, field: :user)
     when "-upvoter", "-upvote"
diff --git a/test/unit/post_query_builder_test.rb b/test/unit/post_query_builder_test.rb
index 6d181b657..226cedd71 100644
--- a/test/unit/post_query_builder_test.rb
+++ b/test/unit/post_query_builder_test.rb
@@ -380,6 +380,18 @@ class PostQueryBuilderTest < ActiveSupport::TestCase
       assert_tag_match([], "noter:none")
     end
 
+    should "return posts for the noteupdater:<name> metatag" do
+      user1 = create(:user)
+      user2 = create(:user)
+      note1 = as(user1) { create(:note) }
+      note2 = as(user2) { create(:note) }
+
+      assert_tag_match([note1.post], "noteupdater:#{user1.name}")
+      assert_tag_match([note2.post], "noteupdater:#{user2.name}")
+      assert_tag_match([note2.post], "-noteupdater:#{user1.name}")
+      assert_tag_match([note1.post], "-noteupdater:#{user2.name}")
+    end
+
     should "return posts for the note_count:<N> metatag" do
       posts = create_list(:post, 3)
       create(:note, post: posts[0], is_active: true)