diff --git a/app/models/artist.rb b/app/models/artist.rb
index 0ed4c96e3..c5379f531 100644
--- a/app/models/artist.rb
+++ b/app/models/artist.rb
@@ -242,7 +242,8 @@ class Artist < ApplicationRecord
     end
 
     def normalize_other_names
-      self.other_names = other_names.map { |x| Artist.normalize_name(x) }
+      self.other_names = other_names.map { |x| Artist.normalize_name(x) }.uniq
+      self.other_names -= [name]
     end
   end
 
diff --git a/test/unit/artist_test.rb b/test/unit/artist_test.rb
index 76117910d..600cb42b2 100644
--- a/test/unit/artist_test.rb
+++ b/test/unit/artist_test.rb
@@ -407,7 +407,7 @@ class ArtistTest < ActiveSupport::TestCase
     end
 
     should "normalize its other names" do
-      artist = FactoryBot.create(:artist, :name => "a1", :other_names => "aaa bbb ccc_ddd")
+      artist = FactoryBot.create(:artist, name: "a1", other_names: "a1 aaa aaa AAA bbb ccc_ddd")
       assert_equal("aaa bbb ccc_ddd", artist.other_names_string)
     end