diff --git a/WebContent/gui/OSRM.MainGUI.js b/WebContent/gui/OSRM.MainGUI.js
index 3b3dc7553..db81f31f9 100644
--- a/WebContent/gui/OSRM.MainGUI.js
+++ b/WebContent/gui/OSRM.MainGUI.js
@@ -100,7 +100,7 @@ initDistanceFormatsSelector: function() {
 setDistanceFormat: function(type) {
 	if( OSRM.G.active_distance_format == type )
 		return;
-	OSRM.active_distance_format = type;
+	OSRM.G.active_distance_format = type;
 	
 	// change scale control
 	if(OSRM.G.map) {