diff --git a/Postal.lua b/Postal.lua
index ad58f9c..5cfc170 100644
--- a/Postal.lua
+++ b/Postal.lua
@@ -738,7 +738,7 @@ function SendMail_Send()
 
 	local amount = SendMail_state.money
 	if amount > 0 then
-		SendMail_state.money = nil
+		SendMail_state.money = 0
 		if SendMail_state.cod then
 			SetSendMailCOD(amount)
 		else