when building from sources binary is not reporting current version

[kworr]

Host operating system: output of uname -a

DragonFly probe 5.5-DEVELOPMENT DragonFly v5.5.0.69.gda367-DEVELOPMENT #31: Sat Dec 15 19:06:23 EET 2018 arcade@probe:/usr/obj/usr/src/sys/MINIMALD x86_64

node_exporter version: output of node_exporter --version

node_exporter, version (branch: , revision: )
build user:
build date:
go version: go1.11.1

Are you running node_exporter in Docker?

nope

What did you expect to see?

version, obviously

Hello, looks like the build is messed up a little for me and doesn't pick up correct version. How can I debug/fix that?