diff --git a/runtime/bin/socket_patch.dart b/runtime/bin/socket_patch.dart
index 4a87275..eb01395 100644
--- a/runtime/bin/socket_patch.dart
+++ b/runtime/bin/socket_patch.dart
@@ -144,7 +144,7 @@
 
   String get host => _host != null ? _host : address;
 
-  List<int> get rawAddress => new Uint8List.fromList(_in_addr);
+  Uint8List get rawAddress => new Uint8List.fromList(_in_addr);
 
   bool get isLoopback {
     switch (type) {
@@ -1177,15 +1177,15 @@
   nativeRecvFrom() native "Socket_RecvFrom";
   nativeWrite(List<int> buffer, int offset, int bytes)
       native "Socket_WriteList";
-  nativeSendTo(List<int> buffer, int offset, int bytes, List<int> address,
+  nativeSendTo(List<int> buffer, int offset, int bytes, Uint8List address,
       int port) native "Socket_SendTo";
-  nativeCreateConnect(List<int> addr, int port) native "Socket_CreateConnect";
-  nativeCreateBindConnect(List<int> addr, int port, List<int> sourceAddr)
+  nativeCreateConnect(Uint8List addr, int port) native "Socket_CreateConnect";
+  nativeCreateBindConnect(Uint8List addr, int port, Uint8List sourceAddr)
       native "Socket_CreateBindConnect";
   bool isBindError(int errorNumber) native "SocketBase_IsBindError";
-  nativeCreateBindListen(List<int> addr, int port, int backlog, bool v6Only,
+  nativeCreateBindListen(Uint8List addr, int port, int backlog, bool v6Only,
       bool shared) native "ServerSocket_CreateBindListen";
-  nativeCreateBindDatagram(List<int> addr, int port, bool reuseAddress,
+  nativeCreateBindDatagram(Uint8List addr, int port, bool reuseAddress,
       bool reusePort, int ttl) native "Socket_CreateBindDatagram";
   nativeAccept(_NativeSocket socket) native "ServerSocket_Accept";
   int nativeGetPort() native "Socket_GetPort";
@@ -1199,9 +1199,9 @@
       native "Socket_SetOption";
   OSError nativeSetRawOption(int level, int option, Uint8List data)
       native "Socket_SetRawOption";
-  OSError nativeJoinMulticast(List<int> addr, List<int> interfaceAddr,
+  OSError nativeJoinMulticast(Uint8List addr, Uint8List interfaceAddr,
       int interfaceIndex) native "Socket_JoinMulticast";
-  bool nativeLeaveMulticast(List<int> addr, List<int> interfaceAddr,
+  bool nativeLeaveMulticast(Uint8List addr, Uint8List interfaceAddr,
       int interfaceIndex) native "Socket_LeaveMulticast";
 }
 
@@ -1985,6 +1985,6 @@
 
 @pragma("vm:entry-point", "call")
 Datagram _makeDatagram(
-    List<int> data, String address, List<int> in_addr, int port) {
+    List<int> data, String address, Uint8List in_addr, int port) {
   return new Datagram(data, new _InternetAddress(address, null, in_addr), port);
 }
diff --git a/sdk/lib/io/socket.dart b/sdk/lib/io/socket.dart
index fdf6bbd..cb0f78c 100644
--- a/sdk/lib/io/socket.dart
+++ b/sdk/lib/io/socket.dart
@@ -115,7 +115,7 @@
    * 4 or 16 byte long list. The returned list is a copy, making it possible
    * to change the list without modifying the [InternetAddress].
    */
-  List<int> get rawAddress;
+  Uint8List get rawAddress;
 
   /**
    * Returns true if the [InternetAddress] is a loopback address.