diff --git a/libp2p/connection.nim b/libp2p/connection.nim
index 740fa7bc0..69ce8f559 100644
--- a/libp2p/connection.nim
+++ b/libp2p/connection.nim
@@ -22,7 +22,7 @@ proc newConnection*(reader: AsyncStreamReader, writter: AsyncStreamWriter): Conn
   result.reader = reader
   result.writter = writter
 
-method read* (c: Connection, size: int = DefaultReadSize): Future[seq[byte]] {.base, async.} = 
+method read* (c: Connection, size: int = DefaultReadSize): Future[seq[byte]] {.base, async, gcsafe.} = 
   ## read DefaultReadSize (1024) bytes or `size` bytes if specified
   result = await c.reader.read(size)
 
diff --git a/libp2p/tcptransport.nim b/libp2p/tcptransport.nim
index 6e062f96e..93fbbf65a 100644
--- a/libp2p/tcptransport.nim
+++ b/libp2p/tcptransport.nim
@@ -39,21 +39,22 @@ method listen*(t: TcpTransport): Future[void] {.async.} =
   let listenFuture: Future[void] = newFuture[void]()
   result = listenFuture
 
-  ## listen on the transport
-  discard createStreamServer(t.ma,
-                             connCb,
-                             {},
-                             t,
-                             asyncInvalidSocket,
-                             100,
-                             DefaultStreamBufferSize,
-                             nil,
-                             proc (server: StreamServer,
-                                   fd: AsyncFD): StreamTransport {.gcsafe.} =
+  proc initTransport(server: StreamServer, fd: AsyncFD): StreamTransport {.gcsafe.} =
     t.server = server
     t.fd = fd
     listenFuture.complete()
-  )
+
+  ## listen on the transport
+  let server = createStreamServer(t.ma,
+                                  connCb,
+                                  {},
+                                  t,
+                                  asyncInvalidSocket,
+                                  100,
+                                  DefaultStreamBufferSize,
+                                  nil,
+                                  initTransport)
+  server.start()
 
 method dial*(t: TcpTransport,
              address: MultiAddress): Future[Connection] {.async.} =
diff --git a/libp2p/transport.nim b/libp2p/transport.nim
index 94d8cc8cc..14d95a12c 100644
--- a/libp2p/transport.nim
+++ b/libp2p/transport.nim
@@ -27,7 +27,7 @@ method init*(t: Transport) {.base.} =
   ## perform protocol initialization
   discard
 
-proc new*(t: typedesc[Transport], 
+proc newTransport*(t: typedesc[Transport], 
           ma: MultiAddress, 
           handler: ConnHandler): t = 
   new result
diff --git a/tests/testmultiaddress.nim b/tests/testmultiaddress.nim
index b75676720..78724e80b 100644
--- a/tests/testmultiaddress.nim
+++ b/tests/testmultiaddress.nim
@@ -361,3 +361,7 @@ suite "MultiAddress test suite":
       for bitem in item.bad:
         var a = MultiAddress.init(bitem)
         check item.pattern.match(a) == false
+
+  test "MultiAddress port":
+    var maStr = "/ip4/127.0.0.1/tcp/55555"
+    var ma = MultiAddress.init(maStr)
diff --git a/tests/testtransport b/tests/testtransport
new file mode 100755
index 000000000..f5ef3782c
Binary files /dev/null and b/tests/testtransport differ
diff --git a/tests/testtransport.nim b/tests/testtransport.nim
new file mode 100644
index 000000000..0b4ad0bed
--- /dev/null
+++ b/tests/testtransport.nim
@@ -0,0 +1,22 @@
+import unittest
+import chronos
+import ../libp2p/connection, ../libp2p/transport, ../libp2p/tcptransport,
+    ../libp2p/multiaddress, ../libp2p/wire
+
+suite "TCP transport suite":
+  test "test listener":
+    proc testListener(): Future[bool] {.async.} =
+      let ma: MultiAddress = Multiaddress.init("/ip4/127.0.0.1/tcp/53335")
+      proc connHandler(conn: Connection): Future[void] {.gcsafe.} =
+        let msg = "Hello"
+        conn.write(msg.cstring, 6)
+
+      let transport: TcpTransport = newTransport(TcpTransport, ma, connHandler)
+      await transport.listen()
+      let streamTransport: StreamTransport = await connect(ma)
+      let msg = await streamTransport.read()
+      echo "HERE!!!!"
+      result = cast[string](msg) == "Hello!"
+
+    check:
+       waitFor(testListener()) == true