diff --git a/pkg/build/freebsd.go b/pkg/build/freebsd.go
index d705978a..59635c59 100644
--- a/pkg/build/freebsd.go
+++ b/pkg/build/freebsd.go
@@ -72,7 +72,7 @@ sudo mount /dev/${md}p${partn} $tmpdir
 
 sudo MAKEOBJDIRPREFIX=%s make -C %s installkernel WITH_EXTRA_TCP_STACKS= KERNCONF=%s DESTDIR=$tmpdir
 
-cat | sudo tee -a ${tmpdir}/boot/loader.conf <<__EOF__
+cat | sudo tee ${tmpdir}/boot/loader.conf <<__EOF__
 ipsec_load="YES"
 pf_load="YES"
 sctp_load="YES"