diff --git a/metrics/cpu_disabled.go b/metrics/cpu_disabled.go
index 6c3428993f..82b300171c 100644
--- a/metrics/cpu_disabled.go
+++ b/metrics/cpu_disabled.go
@@ -14,7 +14,7 @@
 // You should have received a copy of the GNU Lesser General Public License
 // along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
 
-// +build ios
+// +build ios darwin,!cgo
 
 package metrics
 
diff --git a/metrics/cpu_enabled.go b/metrics/cpu_enabled.go
index 99d44e4002..75e1c92e0e 100644
--- a/metrics/cpu_enabled.go
+++ b/metrics/cpu_enabled.go
@@ -14,7 +14,7 @@
 // You should have received a copy of the GNU Lesser General Public License
 // along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
 
-// +build !ios
+// +build darwin,cgo dragonfly freebsd linux nacl netbsd openbsd solaris windows
 
 package metrics