diff --git a/src/ua-parser.js b/src/ua-parser.js
index 03458fe..b4e6a1a 100644
--- a/src/ua-parser.js
+++ b/src/ua-parser.js
@@ -694,7 +694,7 @@
                                                                                 // Android/WebOS/Palm/QNX/Bada/RIM/MeeGo/Contiki
             /linux;.+(sailfish);/i                                              // Sailfish OS
             ], [NAME, VERSION], [
-            /(symbian\s?os|symbos|s60(?=;))[\/\s-]?([\w\.]+)*/i                 // Symbian
+            /(symbian\s?o?s?|symbos|s60(?=;))[\/\s-]?([\w\.]+)*/i               // Symbian
             ], [[NAME, 'Symbian'], VERSION], [
             /\((series40);/i                                                    // Series 40
             ], [NAME], [