diff --git a/connector/docker.go b/connector/docker.go
index 86a835b..0f51a3f 100644
--- a/connector/docker.go
+++ b/connector/docker.go
@@ -11,6 +11,8 @@ import (
 	api "github.com/fsouza/go-dockerclient"
 )
 
+func init() { enabled["docker"] = NewDocker }
+
 type Docker struct {
 	client       *api.Client
 	containers   map[string]*container.Container
diff --git a/connector/enabled_darwin.go b/connector/enabled_darwin.go
deleted file mode 100644
index d68c6c6..0000000
--- a/connector/enabled_darwin.go
+++ /dev/null
@@ -1,7 +0,0 @@
-// +build !linux
-
-package connector
-
-var enabled = map[string]func() Connector{
-	"docker": NewDocker,
-}
diff --git a/connector/enabled_linux.go b/connector/enabled_linux.go
deleted file mode 100644
index 76e3bab..0000000
--- a/connector/enabled_linux.go
+++ /dev/null
@@ -1,8 +0,0 @@
-// +build !darwin
-
-package connector
-
-var enabled = map[string]func() Connector{
-	"docker": NewDocker,
-	"runc":   NewRunc,
-}
diff --git a/connector/main.go b/connector/main.go
index dfc6f00..c19c1de 100644
--- a/connector/main.go
+++ b/connector/main.go
@@ -7,7 +7,10 @@ import (
 	"github.com/bcicen/ctop/logging"
 )
 
-var log = logging.Init()
+var (
+	log     = logging.Init()
+	enabled = make(map[string]func() Connector)
+)
 
 func ByName(s string) (Connector, error) {
 	if _, ok := enabled[s]; !ok {
diff --git a/connector/mock.go b/connector/mock.go
index a842754..bfa30d1 100644
--- a/connector/mock.go
+++ b/connector/mock.go
@@ -14,11 +14,13 @@ import (
 	"github.com/nu7hatch/gouuid"
 )
 
+func init() { enabled["mock"] = NewMock }
+
 type Mock struct {
 	containers container.Containers
 }
 
-func NewMock() *Mock {
+func NewMock() Connector {
 	cs := &Mock{}
 	go cs.Init()
 	go cs.Loop()
diff --git a/connector/runc.go b/connector/runc.go
index b829323..1320a40 100644
--- a/connector/runc.go
+++ b/connector/runc.go
@@ -17,6 +17,8 @@ import (
 	"github.com/opencontainers/runc/libcontainer/cgroups/systemd"
 )
 
+func init() { enabled["runc"] = NewRunc }
+
 type RuncOpts struct {
 	root           string // runc root path
 	systemdCgroups bool   // use systemd cgroups