diff --git a/addons/compat_rf/CfgVehicles.hpp b/addons/compat_rf/CfgVehicles.hpp
index bb2e1fa6e5f..f6165812db9 100644
--- a/addons/compat_rf/CfgVehicles.hpp
+++ b/addons/compat_rf/CfgVehicles.hpp
@@ -15,11 +15,13 @@ class CfgVehicles {
     class C_Truck_03_water_rf: O_Truck_03_fuel_F {
         EXGVAR(field_rations,waterSupply) = 10000;
         EXGVAR(field_rations,offset)[] = {0, -5.05, -0.3};
+        EGVAR(refuel,fuelCargo) = -1;
     };
 
     class B_Truck_01_fuel_F;
     class C_Truck_01_water_rf: B_Truck_01_fuel_F {
         EXGVAR(field_rations,waterSupply) = 10000;
         EXGVAR(field_rations,offset)[] = {-0.41, -5.15, -0.3};
+        EGVAR(refuel,fuelCargo) = -1;
     };
 };