たきゃ meaning in this context?


The context is as follows:

the player's party wants to cross a bridge and the bandit leader says "何だお前ら？
ここを通りたきゃ通行料1000000G置いてきな！！"

So he wants the characters to pay a toll, but I have trouble understanding the
"通りたきゃ" part.

Is it derived from "通りたいなら" or something else?

