diff --git a/changelogs/unreleased/38432-fix-notes-type-for-import.yml b/changelogs/unreleased/38432-fix-notes-type-for-import.yml
new file mode 100644
index 00000000000..db8371f4420
--- /dev/null
+++ b/changelogs/unreleased/38432-fix-notes-type-for-import.yml
@@ -0,0 +1,6 @@
+---
+title: Fix notes type created from import. This should fix some missing notes issues
+  from imported projects
+merge_request: 14524
+author:
+type: fixed
diff --git a/db/post_migrate/20170927112318_update_legacy_diff_notes_type_for_import.rb b/db/post_migrate/20170927112318_update_legacy_diff_notes_type_for_import.rb
new file mode 100644
index 00000000000..a238216253b
--- /dev/null
+++ b/db/post_migrate/20170927112318_update_legacy_diff_notes_type_for_import.rb
@@ -0,0 +1,16 @@
+class UpdateLegacyDiffNotesTypeForImport < ActiveRecord::Migration
+  include Gitlab::Database::MigrationHelpers
+
+  DOWNTIME = false
+
+  disable_ddl_transaction!
+
+  def up
+    update_column_in_batches(:notes, :type, 'LegacyDiffNote') do |table, query|
+      query.where(table[:type].eq('Github::Import::LegacyDiffNote'))
+    end
+  end
+
+  def down
+  end
+end
diff --git a/db/post_migrate/20170927112319_update_notes_type_for_import.rb b/db/post_migrate/20170927112319_update_notes_type_for_import.rb
new file mode 100644
index 00000000000..1e70acd9868
--- /dev/null
+++ b/db/post_migrate/20170927112319_update_notes_type_for_import.rb
@@ -0,0 +1,16 @@
+class UpdateNotesTypeForImport < ActiveRecord::Migration
+  include Gitlab::Database::MigrationHelpers
+
+  DOWNTIME = false
+
+  disable_ddl_transaction!
+
+  def up
+    update_column_in_batches(:notes, :type, 'Note') do |table, query|
+      query.where(table[:type].eq('Github::Import::Note'))
+    end
+  end
+
+  def down
+  end
+end
diff --git a/lib/github/import.rb b/lib/github/import.rb
index f5f62dc8b6f..c0cd8382875 100644
--- a/lib/github/import.rb
+++ b/lib/github/import.rb
@@ -1,46 +1,13 @@
 require_relative 'error'
+require_relative 'import/issue'
+require_relative 'import/legacy_diff_note'
+require_relative 'import/merge_request'
+require_relative 'import/note'
 
 module Github
   class Import
     include Gitlab::ShellAdapter
 
-    class MergeRequest < ::MergeRequest
-      self.table_name = 'merge_requests'
-
-      self.reset_callbacks :create
-      self.reset_callbacks :save
-      self.reset_callbacks :commit
-      self.reset_callbacks :update
-      self.reset_callbacks :validate
-    end
-
-    class Issue < ::Issue
-      self.table_name = 'issues'
-
-      self.reset_callbacks :save
-      self.reset_callbacks :create
-      self.reset_callbacks :commit
-      self.reset_callbacks :update
-      self.reset_callbacks :validate
-    end
-
-    class Note < ::Note
-      self.table_name = 'notes'
-
-      self.reset_callbacks :save
-      self.reset_callbacks :commit
-      self.reset_callbacks :update
-      self.reset_callbacks :validate
-    end
-
-    class LegacyDiffNote < ::LegacyDiffNote
-      self.table_name = 'notes'
-
-      self.reset_callbacks :commit
-      self.reset_callbacks :update
-      self.reset_callbacks :validate
-    end
-
     attr_reader :project, :repository, :repo, :repo_url, :wiki_url,
                 :options, :errors, :cached, :verbose
 
diff --git a/lib/github/import/issue.rb b/lib/github/import/issue.rb
new file mode 100644
index 00000000000..171f0872666
--- /dev/null
+++ b/lib/github/import/issue.rb
@@ -0,0 +1,13 @@
+module Github
+  class Import
+    class Issue < ::Issue
+      self.table_name = 'issues'
+
+      self.reset_callbacks :save
+      self.reset_callbacks :create
+      self.reset_callbacks :commit
+      self.reset_callbacks :update
+      self.reset_callbacks :validate
+    end
+  end
+end
diff --git a/lib/github/import/legacy_diff_note.rb b/lib/github/import/legacy_diff_note.rb
new file mode 100644
index 00000000000..18adff560b6
--- /dev/null
+++ b/lib/github/import/legacy_diff_note.rb
@@ -0,0 +1,12 @@
+module Github
+  class Import
+    class LegacyDiffNote < ::LegacyDiffNote
+      self.table_name = 'notes'
+      self.store_full_sti_class = false
+
+      self.reset_callbacks :commit
+      self.reset_callbacks :update
+      self.reset_callbacks :validate
+    end
+  end
+end
diff --git a/lib/github/import/merge_request.rb b/lib/github/import/merge_request.rb
new file mode 100644
index 00000000000..c258e5d5e0e
--- /dev/null
+++ b/lib/github/import/merge_request.rb
@@ -0,0 +1,13 @@
+module Github
+  class Import
+    class MergeRequest < ::MergeRequest
+      self.table_name = 'merge_requests'
+
+      self.reset_callbacks :create
+      self.reset_callbacks :save
+      self.reset_callbacks :commit
+      self.reset_callbacks :update
+      self.reset_callbacks :validate
+    end
+  end
+end
diff --git a/lib/github/import/note.rb b/lib/github/import/note.rb
new file mode 100644
index 00000000000..8cf4f30e6b7
--- /dev/null
+++ b/lib/github/import/note.rb
@@ -0,0 +1,13 @@
+module Github
+  class Import
+    class Note < ::Note
+      self.table_name = 'notes'
+      self.store_full_sti_class = false
+
+      self.reset_callbacks :save
+      self.reset_callbacks :commit
+      self.reset_callbacks :update
+      self.reset_callbacks :validate
+    end
+  end
+end
diff --git a/spec/lib/github/import/legacy_diff_note_spec.rb b/spec/lib/github/import/legacy_diff_note_spec.rb
new file mode 100644
index 00000000000..8c50b46cacb
--- /dev/null
+++ b/spec/lib/github/import/legacy_diff_note_spec.rb
@@ -0,0 +1,9 @@
+require 'spec_helper'
+
+describe Github::Import::LegacyDiffNote do
+  describe '#type' do
+    it 'returns the original note type' do
+      expect(described_class.new.type).to eq('LegacyDiffNote')
+    end
+  end
+end
diff --git a/spec/lib/github/import/note_spec.rb b/spec/lib/github/import/note_spec.rb
new file mode 100644
index 00000000000..fcdccd9e097
--- /dev/null
+++ b/spec/lib/github/import/note_spec.rb
@@ -0,0 +1,9 @@
+require 'spec_helper'
+
+describe Github::Import::Note do
+  describe '#type' do
+    it 'returns the original note type' do
+      expect(described_class.new.type).to eq('Note')
+    end
+  end
+end
diff --git a/spec/migrations/update_legacy_diff_notes_type_for_import_spec.rb b/spec/migrations/update_legacy_diff_notes_type_for_import_spec.rb
new file mode 100644
index 00000000000..d625b60ff50
--- /dev/null
+++ b/spec/migrations/update_legacy_diff_notes_type_for_import_spec.rb
@@ -0,0 +1,22 @@
+require 'spec_helper'
+require Rails.root.join('db', 'post_migrate', '20170927112318_update_legacy_diff_notes_type_for_import.rb')
+
+describe UpdateLegacyDiffNotesTypeForImport, :migration do
+  let(:notes) { table(:notes) }
+
+  before do
+    notes.inheritance_column = nil
+
+    notes.create(type: 'Note')
+    notes.create(type: 'LegacyDiffNote')
+    notes.create(type: 'Github::Import::Note')
+    notes.create(type: 'Github::Import::LegacyDiffNote')
+  end
+
+  it 'updates the notes type' do
+    migrate!
+
+    expect(notes.pluck(:type))
+      .to contain_exactly('Note', 'Github::Import::Note', 'LegacyDiffNote', 'LegacyDiffNote')
+  end
+end
diff --git a/spec/migrations/update_notes_type_for_import_spec.rb b/spec/migrations/update_notes_type_for_import_spec.rb
new file mode 100644
index 00000000000..06195d970d8
--- /dev/null
+++ b/spec/migrations/update_notes_type_for_import_spec.rb
@@ -0,0 +1,22 @@
+require 'spec_helper'
+require Rails.root.join('db', 'post_migrate', '20170927112319_update_notes_type_for_import.rb')
+
+describe UpdateNotesTypeForImport, :migration do
+  let(:notes) { table(:notes) }
+
+  before do
+    notes.inheritance_column = nil
+
+    notes.create(type: 'Note')
+    notes.create(type: 'LegacyDiffNote')
+    notes.create(type: 'Github::Import::Note')
+    notes.create(type: 'Github::Import::LegacyDiffNote')
+  end
+
+  it 'updates the notes type' do
+    migrate!
+
+    expect(notes.pluck(:type))
+      .to contain_exactly('Note', 'Note', 'LegacyDiffNote', 'Github::Import::LegacyDiffNote')
+  end
+end