diff --git a/lib/underscore.inflection.js b/lib/underscore.inflection.js
index 4799343..573d91e 100644
--- a/lib/underscore.inflection.js
+++ b/lib/underscore.inflection.js
@@ -211,6 +211,7 @@
       this.singular(/([^aeiouy]|qu)ies$/,                                            '$1y');
       this.singular(/(s)eries$/,                                                     '$1eries');
       this.singular(/(m)ovies$/,                                                     '$1ovie');
+      this.singular(/(ss)$/,                                                         '$1');
       this.singular(/(x|ch|ss|sh)es$/,                                               '$1');
       this.singular(/([m|l])ice$/,                                                   '$1ouse');
       this.singular(/(bus)es$/,                                                      '$1');
diff --git a/test/inflector.js b/test/inflector.js
index 1faeaa9..ce39d79 100644
--- a/test/inflector.js
+++ b/test/inflector.js
@@ -23,6 +23,7 @@ describe('inflector', function() {
       ['loaf', 'loaves'],
       ['thief', 'thieves'],
       ['hive', 'hives'],
+      ['boss', 'bosses'],
       ['soliloquy', 'soliloquies'],
       ['wish', 'wishes'],
       ['vertex', 'vertices'],
@@ -47,6 +48,8 @@ describe('inflector', function() {
       ['mice', 'mouse'],
       ['buses', 'bus'],
       ['shoes', 'shoe'],
+      ['bosses', 'boss'],
+      ['boss', 'boss'],
       ['crises', 'crisis'],
       ['viri', 'virus'],
       ['statuses', 'status'],