diff --git a/WebContent/OSRM.config.js b/WebContent/OSRM.config.js
index 7ee95c4a2..b4324060b 100644
--- a/WebContent/OSRM.config.js
+++ b/WebContent/OSRM.config.js
@@ -44,7 +44,7 @@ OSRM.DEFAULTS = {
 	LANUGAGE_ONDEMAND_RELOADING: true,
 	LANGUAGE_SUPPORTED: [ 
 		{encoding:"en", name:"English"},
-		{encoding:"cz", name:"Česky"},
+		{encoding:"cs", name:"Česky"},
 		{encoding:"de", name:"Deutsch"},
 		{encoding:"dk", name:"Dansk"},
 		{encoding:"es", name:"Español"},
diff --git a/WebContent/localization/OSRM.Locale.cz.js b/WebContent/localization/OSRM.Locale.cs.js
similarity index 100%
rename from WebContent/localization/OSRM.Locale.cz.js
rename to WebContent/localization/OSRM.Locale.cs.js