diff --git a/webrtc/test/channel_transport/udp_socket2_win.cc b/webrtc/test/channel_transport/udp_socket2_win.cc
index 03a823e6a..fe26273e0 100644
--- a/webrtc/test/channel_transport/udp_socket2_win.cc
+++ b/webrtc/test/channel_transport/udp_socket2_win.cc
@@ -14,6 +14,7 @@
 #include <stdlib.h>
 #include <winsock2.h>
 
+#include "webrtc/system_wrappers/interface/sleep.h"
 #include "webrtc/test/channel_transport/traffic_control_win.h"
 #include "webrtc/test/channel_transport/udp_socket2_manager_win.h"
 
@@ -629,7 +630,7 @@ WebRtc_Word32 UdpSocket2Windows::PostRecv(PerIoContext* pIoContext)
                     tries);
                 // Tell the OS that this is a good place to context switch if
                 // it wants to.
-                Sleep(0);
+                SleepMs(0);
             }
         }
         if((rxError == ERROR_IO_PENDING) || (nRet == 0))
diff --git a/webrtc/test/channel_transport/udp_socket_manager_posix.cc b/webrtc/test/channel_transport/udp_socket_manager_posix.cc
index 874164164..8cd270f42 100644
--- a/webrtc/test/channel_transport/udp_socket_manager_posix.cc
+++ b/webrtc/test/channel_transport/udp_socket_manager_posix.cc
@@ -17,6 +17,7 @@
 #include <unistd.h>
 #include <stdio.h>
 
+#include "webrtc/system_wrappers/interface/sleep.h"
 #include "webrtc/system_wrappers/interface/trace.h"
 #include "webrtc/test/channel_transport/udp_socket_posix.h"
 
@@ -286,19 +287,13 @@ bool UdpSocketManagerPosixImpl::Process()
         if (num == SOCKET_ERROR)
         {
             // Timeout = 10 ms.
-            timespec t;
-            t.tv_sec = 0;
-            t.tv_nsec = 10000*1000;
-            nanosleep(&t, NULL);
+            SleepMs(10);
             return true;
         }
     }else
     {
         // Timeout = 10 ms.
-        timespec t;
-        t.tv_sec = 0;
-        t.tv_nsec = 10000*1000;
-        nanosleep(&t, NULL);
+        SleepMs(10);
         return true;
     }