diff --git a/SQF/dayz_code/actions/trade_any_bicycle.sqf b/SQF/dayz_code/actions/trade_any_bicycle.sqf
index 585512fa4..bb8a65d3a 100644
--- a/SQF/dayz_code/actions/trade_any_bicycle.sqf
+++ b/SQF/dayz_code/actions/trade_any_bicycle.sqf
@@ -81,8 +81,8 @@ if (_qty >= _qty_in) then {
 		if (_qty >= _qty_in) then {
 
 			//["PVDZE_obj_Trade",[_activatingPlayer,_traderID,_bos]] call callRpcProcedure;
-			if (isNil _obj) then { _obj = "Unknown Vehicle" };
-			if (isNil inTraderCity) then { inTraderCity = "Unknown Trader City" };
+			if (isNil "_obj") then { _obj = "Unknown Vehicle" };
+			if (isNil "inTraderCity") then { inTraderCity = "Unknown Trader City" };
 			PVDZE_obj_Trade = [_activatingPlayer,_traderID,_bos,_obj,inTraderCity];
 			publicVariableServer  "PVDZE_obj_Trade";
 	
diff --git a/SQF/dayz_code/actions/trade_any_boat.sqf b/SQF/dayz_code/actions/trade_any_boat.sqf
index c34be8d59..9707aca53 100644
--- a/SQF/dayz_code/actions/trade_any_boat.sqf
+++ b/SQF/dayz_code/actions/trade_any_boat.sqf
@@ -82,8 +82,8 @@ if (_qty >= _qty_in) then {
 		if (_qty >= _qty_in) then {
 
 			//["PVDZE_obj_Trade",[_activatingPlayer,_traderID,_bos]] call callRpcProcedure;
-			if (isNil _obj) then { _obj = "Unknown Vehicle" };
-			if (isNil inTraderCity) then { inTraderCity = "Unknown Trader City" };
+			if (isNil "_obj") then { _obj = "Unknown Vehicle" };
+			if (isNil "inTraderCity") then { inTraderCity = "Unknown Trader City" };
 			PVDZE_obj_Trade = [_activatingPlayer,_traderID,_bos,_obj,inTraderCity];
 			publicVariableServer  "PVDZE_obj_Trade";
 	
diff --git a/SQF/dayz_code/actions/trade_any_vehicle.sqf b/SQF/dayz_code/actions/trade_any_vehicle.sqf
index f01c86b84..3d8400dce 100644
--- a/SQF/dayz_code/actions/trade_any_vehicle.sqf
+++ b/SQF/dayz_code/actions/trade_any_vehicle.sqf
@@ -90,8 +90,8 @@ if (_qty >= _qty_in) then {
 		if (_qty >= _qty_in) then {
 
 			//["PVDZE_obj_Trade",[_activatingPlayer,_traderID,_bos]] call callRpcProcedure;
-			if (isNil _obj) then { _obj = "Unknown Vehicle" };
-			if (isNil inTraderCity) then { inTraderCity = "Unknown Trader City" };
+			if (isNil "_obj") then { _obj = "Unknown Vehicle" };
+			if (isNil "inTraderCity") then { inTraderCity = "Unknown Trader City" };
 			PVDZE_obj_Trade = [_activatingPlayer,_traderID,_bos,_obj,inTraderCity];
 			publicVariableServer  "PVDZE_obj_Trade";
 	
diff --git a/SQF/dayz_code/actions/trade_backpacks.sqf b/SQF/dayz_code/actions/trade_backpacks.sqf
index 3ff316033..837c96fa5 100644
--- a/SQF/dayz_code/actions/trade_backpacks.sqf
+++ b/SQF/dayz_code/actions/trade_backpacks.sqf
@@ -84,8 +84,8 @@ if (_qty >= _qty_in) then {
 		if (_qty >= _qty_in) then {
 
 			//["PVDZE_obj_Trade",[_activatingPlayer,_traderID,_bos]] call callRpcProcedure;
-			if (isNil _bag) then { _bag = "Unknown Backpack" };
-			if (isNil inTraderCity) then { inTraderCity = "Unknown Trader City" };
+			if (isNil "_bag") then { _bag = "Unknown Backpack" };
+			if (isNil "inTraderCity") then { inTraderCity = "Unknown Trader City" };
 			PVDZE_obj_Trade = [_activatingPlayer,_traderID,_bos,_bag,inTraderCity];
 			publicVariableServer  "PVDZE_obj_Trade";
 	
diff --git a/SQF/dayz_code/actions/trade_items.sqf b/SQF/dayz_code/actions/trade_items.sqf
index 7e6466a73..a88b3d735 100644
--- a/SQF/dayz_code/actions/trade_items.sqf
+++ b/SQF/dayz_code/actions/trade_items.sqf
@@ -99,8 +99,8 @@ for "_x" from 1 to _total_trades do {
 			if (_removed == _qty_in) then {
 			
 				// Continue with trade.
-				if (isNil _part_in) then { _part_in = "Unknown Item" };
-				if (isNil inTraderCity) then { inTraderCity = "Unknown Trader City" };
+				if (isNil "_part_in") then { _part_in = "Unknown Item" };
+				if (isNil "inTraderCity") then { inTraderCity = "Unknown Trader City" };
 				PVDZE_obj_Trade = [_activatingPlayer,_traderID,_bos,_part_in,inTraderCity];
 
 				waitUntil {!isNil "dayzTradeResult"};
diff --git a/SQF/dayz_code/actions/trade_weapons.sqf b/SQF/dayz_code/actions/trade_weapons.sqf
index 38e1b71c0..d0ff5a618 100644
--- a/SQF/dayz_code/actions/trade_weapons.sqf
+++ b/SQF/dayz_code/actions/trade_weapons.sqf
@@ -80,8 +80,8 @@ if (_qty >= _qty_in) then {
 		if (_qty >= _qty_in) then {
 
 			//["PVDZE_obj_Trade",[_activatingPlayer,_traderID,_bos]] call callRpcProcedure;
-			if (isNil _part_out) then { _part_out = "Unknown Weapon/Magazine" };
-			if (isNil inTraderCity) then { inTraderCity = "Unknown Trader City" };
+			if (isNil "_part_out") then { _part_out = "Unknown Weapon/Magazine" };
+			if (isNil "inTraderCity") then { inTraderCity = "Unknown Trader City" };
 			PVDZE_obj_Trade = [_activatingPlayer,_traderID,_bos,_part_out,inTraderCity];
 			publicVariableServer  "PVDZE_obj_Trade";