diff --git a/ArduCopter/Parameters.cpp b/ArduCopter/Parameters.cpp
index cddcc91e0d..009a25c516 100644
--- a/ArduCopter/Parameters.cpp
+++ b/ArduCopter/Parameters.cpp
@@ -1026,7 +1026,7 @@ ParametersG2::ParametersG2(void)
     , beacon(copter.serial_manager)
 #endif
 #if PROXIMITY_ENABLED == ENABLED
-    , proximity(copter.serial_manager)
+    , proximity()
 #endif
 #if ADVANCED_FAILSAFE == ENABLED
     ,afs(copter.mode_auto.mission)