diff --git a/conf/flight_plans/TUDELFT/tudelft_delft_basic.xml b/conf/flight_plans/TUDELFT/tudelft_delft_basic.xml
index 341a633646..7a83affa6f 100644
--- a/conf/flight_plans/TUDELFT/tudelft_delft_basic.xml
+++ b/conf/flight_plans/TUDELFT/tudelft_delft_basic.xml
@@ -23,7 +23,7 @@
     <exception cond="((radio_control.status == RC_REALLY_LOST) &&
       !(IndexOfBlock('Takeoff') > nav_block) &&
       !(nav_block >= IndexOfBlock('land')) &&
-      (autopilot_in_flight == true) )" deroute="ComeBackAndLand"/>
+      (autopilot_in_flight() == true) )" deroute="ComeBackAndLand"/>
 
     <!-- GPS loss -->
     <!-- Not done from flight plan, main.c goes to AP_MODE_FAILSAFE hardcoded -->
@@ -36,17 +36,17 @@
       !(datalink_time > 120) &&
       !(IndexOfBlock('Takeoff') > nav_block) &&
       !(nav_block >= IndexOfBlock('land')) &&
-      (autopilot_in_flight == true) )" deroute="DatalinkLoss"/>
+      (autopilot_in_flight() == true) )" deroute="DatalinkLoss"/>
 
     <!-- Battery loss -->
     <exception cond="(electrical.bat_low &&
     !(IndexOfBlock('Holding point') > nav_block) &&
     !(nav_block >= IndexOfBlock('land')) &&
-    (autopilot_in_flight == true) )" deroute="ComeBackAndLand"/>
+    (autopilot_in_flight() == true) )" deroute="ComeBackAndLand"/>
     <exception cond="(electrical.bat_critical &&
     !(IndexOfBlock('Holding point') > nav_block) &&
     !(nav_block >= IndexOfBlock('land')) &&
-    (autopilot_in_flight == true) )" deroute="land here"/>
+    (autopilot_in_flight() == true) )" deroute="land here"/>
   </exceptions>
 
   <blocks>