diff --git a/lib/faker/music.rb b/lib/faker/music.rb
index 4a3ca0157b..ec442f9a26 100644
--- a/lib/faker/music.rb
+++ b/lib/faker/music.rb
@@ -21,6 +21,10 @@ def key_variants
         ['b', '#', '']
       end
 
+      def key_types
+        ['', 'm']
+      end
+
       def chord_types
         ['', 'maj', '6', 'maj7', 'm', 'm7', '-7', '7', 'dom7', 'dim', 'dim7', 'm7b5']
       end
diff --git a/test/test_faker_music.rb b/test/test_faker_music.rb
index 1bc0955e2c..12ab72d7d6 100644
--- a/test/test_faker_music.rb
+++ b/test/test_faker_music.rb
@@ -20,6 +20,13 @@ def test_key_variants
     end
   end
 
+  def test_key_types
+    assert @tester.key_types.size == 2
+    @tester.key_types.each do |key_type|
+      assert !key_type.nil?
+    end
+  end
+
   def test_chord_types
     assert @tester.chord_types.size == 12
     @tester.chord_types.each do |chord_type|
@@ -28,7 +35,7 @@ def test_chord_types
   end
 
   def test_key
-    assert @tester.name.match(/([A-Z])+(b|#){0,1}/)
+    assert @tester.name.match(/([A-Z])+(b|#){0,1}+(m){0,1}/)
   end
 
   def test_instrument