Port forward a minecraft server but have 2 routers?

So I want to make a minecraft server for me and my friend and I want to port forward because my Hamachi doesn't work. Now the way my router is setup is that I have one main one at my shop (where it receives the internet) and it sends it to my house so we get internet. I tried to port-forward 25565 and tested it but it says it is still closed (at my house). What do i have to do to make it work? Do I have to port-forward both routers?

router home: Netgear WNDR3700
router shop: Linksys E2500 (cisco)

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