diff --git a/osgar/drivers/gps.py b/osgar/drivers/gps.py
index 0ebc3d573..3b7bf648d 100644
--- a/osgar/drivers/gps.py
+++ b/osgar/drivers/gps.py
@@ -119,7 +119,7 @@ def split_buffer(data):
 
 class GPS(Thread):
     def __init__(self, config, bus):
-        bus.register('position')
+        bus.register('position', 'rel_position')
         Thread.__init__(self)
         self.setDaemon(True)