diff --git a/addons/missileguidance/functions/fnc_navigationType_line.sqf b/addons/missileguidance/functions/fnc_navigationType_line.sqf
index c9a3870c58b..b3e9cffe00d 100644
--- a/addons/missileguidance/functions/fnc_navigationType_line.sqf
+++ b/addons/missileguidance/functions/fnc_navigationType_line.sqf
@@ -15,7 +15,8 @@
  * Public: No
  */
 params ["_args", "_timestep", "_seekerTargetPos", "_profileAdjustedTargetPos", "_targetData", "_navigationParams"];
-_args params ["", "", "_flightParams"];
+_args params ["_firedEH", "", "_flightParams"];
+_firedEH params ["","","","","","","_projectile"];
 _targetData params ["", "_targetDir", "_distance"];
 _flightParams params ["_pitchRate", "_yawRate"];
 
diff --git a/addons/missileguidance/functions/fnc_proNav_onFired.sqf b/addons/missileguidance/functions/fnc_proNav_onFired.sqf
index c297d3ce59a..f89584c7df0 100644
--- a/addons/missileguidance/functions/fnc_proNav_onFired.sqf
+++ b/addons/missileguidance/functions/fnc_proNav_onFired.sqf
@@ -14,12 +14,8 @@
  *
  * Public: No
  */
-params ["_firedEH", "", "", "", "_stateParams"];
-_firedEH params ["_shooter","","","","_ammo","","_projectile"];
-_launchParams params ["_shooter","_targetLaunchParams","_seekerType","_attackProfile","_lockMode","_laserInfo","_navigationType"];
-_targetLaunchParams params ["_target", "_targetPos", "_launchPos"];
-_stateParams params ["_lastRunTime", "_seekerStateParams", "_attackProfileStateParams", "_lastKnownPosState"];      
-_seekerParams params ["_seekerAngle", "_seekerAccuracy", "_seekerMaxRange", "_seekerMinRange"];
+params ["_firedEH"];
+_firedEH params ["","","","","","","_projectile"];
 
 private _ammoConfig = configOf _projectile;
 private _navigationGain = getNumber (_ammoConfig >> QUOTE(ADDON) >> "navigationGain");