--- a/debian/rules.defs	2018-03-08 14:26:03.000000000 +0100
+++ b/debian/rules.defs	2018-03-08 14:30:53.000000000 +0100
@@ -851,7 +851,7 @@
 ifeq (,$(filter $(distrelease),lenny etch squeeze dapper hardy jaunty karmic lucid maverick natty oneiric))
   go_no_cpus := $(filter-out arm, $(go_no_cpus))
 endif
-go_no_systems := gnu kfreebsd
+go_no_systems := kfreebsd
 
 ifneq ($(with_base_only),yes)
   ifneq ($(separate_lang),yes)