diff --git a/cmd/subspace/main.go b/cmd/subspace/main.go
index 9a76396..464dcb3 100644
--- a/cmd/subspace/main.go
+++ b/cmd/subspace/main.go
@@ -41,17 +41,17 @@ import (
 func main() {
 	rt := int(time.Hour / 1e9)
 
-  if e, ok := os.LookupEnv("SUBSPACE_RETENTION"); ok {
+	if e, ok := os.LookupEnv("SUBSPACE_RETENTION"); ok {
 		rt, _ = strconv.Atoi(e)
-  }
+	}
 
-  if len(os.Args) > 1 {
-    go subspace.Relay(os.Args[1:])
-  }
+	if len(os.Args) > 1 {
+		go subspace.Relay(os.Args[1:])
+	}
 
 	s := sub.NewSpace()
-	
-  exit := make(chan os.Signal, 1)
+
+	exit := make(chan os.Signal, 1)
 
 	signal.Notify(exit, syscall.SIGINT, syscall.SIGTERM)
 
@@ -60,7 +60,7 @@ func main() {
 
 	go gc(s, rt)
 
-  fmt.Printf("⇌ Subspace %ds %v\n", rt, os.Args[1:])
+	fmt.Printf("⇌ Subspace %ds %v\n", rt, os.Args[1:])
 
 	<-exit
 
@@ -95,7 +95,7 @@ func gc(s *sub.Space, rt int) {
 			atomic.LoadUint64(&s.StatAlloc),
 			atomic.LoadUint64(&subspace.Rx),
 			atomic.LoadUint64(&subspace.Tx),
-      atomic.LoadUint64(&subspace.Fx),
+			atomic.LoadUint64(&subspace.Fx),
 		})
 
 		if err == nil {
diff --git a/internal/app/subspace/relay.go b/internal/app/subspace/relay.go
index 31d0cc3..90fa16f 100644
--- a/internal/app/subspace/relay.go
+++ b/internal/app/subspace/relay.go
@@ -3,7 +3,7 @@ package subspace
 
 import (
 	"net"
-  "runtime"
+	"runtime"
 	"sync/atomic"
 
 	"github.com/cuhsat/subspace/internal/pkg/sys"
@@ -14,14 +14,14 @@ import (
 type Bind func(u *net.UDPConn, s *sub.Space)
 
 var (
-  // Received bytes.
-  Rx uint64
+	// Received bytes.
+	Rx uint64
 	// Transmitted bytes.
-  Tx uint64
-  // Forwarded bytes.
-  Fx uint64
-  // Data channel. 
-  dc atomic.Pointer[chan []byte]
+	Tx uint64
+	// Forwarded bytes.
+	Fx uint64
+	// Data channel.
+	dc atomic.Pointer[chan []byte]
 )
 
 // A relay is a uni-directional communication relay to another subspace relay.
@@ -54,29 +54,29 @@ func NewRelay(host string) (r *relay) {
 //
 // Any calling program will terminate immediately if an error occurs.
 func Relay(hosts []string) {
-  rs := make([]*relay, 0)
-
-  for _, host := range hosts {
-    rs = append(rs, NewRelay(host))
-  }
- 
-  ch := make(chan []byte)
-
-  dc.Store(&ch)
-  
-  go func() {
-    for b := range *dc.Load() {
-      for _, r := range rs {
-        n, err := r.tu.Write(b)
-
-	      if err != nil {
-		      sys.Fatal(err)
-	      }
-
-	      atomic.AddUint64(&Fx, uint64(n))
-      }
-    } 
-  }()
+	rs := make([]*relay, 0)
+
+	for _, host := range hosts {
+		rs = append(rs, NewRelay(host))
+	}
+
+	ch := make(chan []byte)
+
+	dc.Store(&ch)
+
+	go func() {
+		for b := range *dc.Load() {
+			for _, r := range rs {
+				n, err := r.tu.Write(b)
+
+				if err != nil {
+					sys.Fatal(err)
+				}
+
+				atomic.AddUint64(&Fx, uint64(n))
+			}
+		}
+	}()
 }
 
 // Send receives data from an UDP pseudo connection
@@ -94,9 +94,9 @@ func Send(u *net.UDPConn, s *sub.Space) {
 
 	atomic.AddUint64(&Rx, uint64(n))
 
-  if c := dc.Load(); c != nil {
-    *c <- b[:n]
-  }
+	if c := dc.Load(); c != nil {
+		*c <- b[:n]
+	}
 }
 
 // Scan receives a state id from an UDP pseudo connection
diff --git a/internal/app/subspace/relay_test.go b/internal/app/subspace/relay_test.go
index 5d23cb9..09e5912 100644
--- a/internal/app/subspace/relay_test.go
+++ b/internal/app/subspace/relay_test.go
@@ -24,30 +24,30 @@ func TestMain(m *testing.M) {
 }
 
 func TestRelay(t *testing.T) {
-  if os.Getenv("CI") != "" {
-    t.Skip() // Faulty CI
-  }
+	if os.Getenv("CI") != "" {
+		t.Skip() // Faulty CI
+	}
+
+	t.Run("Relay should relay a signal to a relay", func(t *testing.T) {
+		t.Cleanup(_cleanup)
 
-  t.Run("Relay should relay a signal to a relay", func(t *testing.T) {
-    t.Cleanup(_cleanup)
+		go Relay([]string{"localhost"})
 
-    go Relay([]string{"localhost"})
-  
-    s := _s.Load()
-    u := sys.Listen("localhost" + sys.Port1)
+		s := _s.Load()
+		u := sys.Listen("localhost" + sys.Port1)
 
-    defer u.Close()
+		defer u.Close()
 
-    go Send(u, s)
+		go Send(u, s)
 
-    _sendOnce()
+		_sendOnce()
 
-    time.Sleep(time.Millisecond)
+		time.Sleep(time.Millisecond)
 
-    if atomic.LoadUint64(&Fx) == 0 {
-      t.Fatal("Signal was not relayed")
-    } 
-  })
+		if atomic.LoadUint64(&Fx) == 0 {
+			t.Fatal("Signal was not relayed")
+		}
+	})
 }
 
 func TestSend(t *testing.T) {
@@ -103,17 +103,17 @@ func TestScan(t *testing.T) {
 }
 
 func BenchmarkRelay(b *testing.B) {
-  b.Run("Benchmark Relay", func(b *testing.B) {
-    b.Cleanup(_cleanup)
+	b.Run("Benchmark Relay", func(b *testing.B) {
+		b.Cleanup(_cleanup)
 
-    b.ResetTimer()
+		b.ResetTimer()
 
 		for n := 0; n < b.N; n++ {
-			 Relay([]string{"localhost"})
+			Relay([]string{"localhost"})
 		}
 
 		b.StopTimer()
-  })
+	})
 }
 
 func BenchmarkSend(b *testing.B) {
diff --git a/pkg/sub/types.go b/pkg/sub/types.go
index b72f0f5..0211c5f 100644
--- a/pkg/sub/types.go
+++ b/pkg/sub/types.go
@@ -46,8 +46,8 @@ type Space struct {
 // by the time the signal they are pointing to is dropped.
 type states struct {
 	sync.RWMutex
-  // Underlying map.
-  m map[string]*signal
+	// Underlying map.
+	m map[string]*signal
 }
 
 // A signal represents a received data package.
@@ -57,10 +57,10 @@ type states struct {
 // A signal with nil as value for data or next has been dropped
 // and will be consumed by the garbage collector soon.
 type signal struct {
-  // Time of receiving.
+	// Time of receiving.
 	time int64
-  // Received data.
+	// Received data.
 	data []byte
-  // Next signal.
+	// Next signal.
 	next *signal
 }