diff --git a/sw/ground_segment/cockpit/live.ml b/sw/ground_segment/cockpit/live.ml
index 7ae9bf7d0e..5b6427b40e 100644
--- a/sw/ground_segment/cockpit/live.ml
+++ b/sw/ground_segment/cockpit/live.ml
@@ -1469,11 +1469,9 @@ let get_intruders = fun (geomap:G.widget) _sender vs ->
   and lat = (i "lat") /. 1e7
   and lon = (i "lon") /. 1e7 in
   let pos = { posn_lat=(Deg>>Rad)lat; posn_long=(Deg>>Rad)lon } in
-  if Intruders.intruder_exist id
-  then
-    Intruders.update_intruder id pos (f "course") ((i "alt") /. 1000.) (f "speed") (f "climb") time
-  else
-    Intruders.new_intruder id name time geomap
+  if not (Intruders.intruder_exist id) then
+    Intruders.new_intruder id name time geomap;
+  Intruders.update_intruder id pos (f "course") ((i "alt") /. 1000.) (f "speed") (f "climb") time
 
 let listen_intruders = fun (geomap:G.widget) ->
   safe_bind "INTRUDER" (get_intruders geomap)