diff --git a/dlls/ws2_32/socket.c b/dlls/ws2_32/socket.c
index 535cf570818..5098f851dd9 100644
--- a/dlls/ws2_32/socket.c
+++ b/dlls/ws2_32/socket.c
@@ -7456,6 +7456,36 @@ INT WINAPI WS_inet_pton( INT family, PCSTR addr, PVOID buffer)
 #endif
 }
 
+/***********************************************************************
+*              InetPtonW                      (WS2_32.@)
+*/
+INT WINAPI InetPtonW(INT family, PCWSTR addr, PVOID buffer)
+{
+    char *addrA;
+    int len;
+    INT ret;
+
+    TRACE("family %d, addr %s, buffer (%p)\n", family, debugstr_w(addr), buffer);
+
+    if (!addr)
+    {
+        SetLastError(WSAEFAULT);
+        return SOCKET_ERROR;
+    }
+
+    len = WideCharToMultiByte(CP_ACP, 0, addr, -1, NULL, 0, NULL, NULL);
+    if (!(addrA = HeapAlloc(GetProcessHeap(), 0, len)))
+    {
+        SetLastError(WSA_NOT_ENOUGH_MEMORY);
+        return SOCKET_ERROR;
+    }
+    WideCharToMultiByte(CP_ACP, 0, addr, -1, addrA, len, NULL, NULL);
+
+    ret = WS_inet_pton(family, addrA, buffer);
+
+    HeapFree(GetProcessHeap(), 0, addrA);
+    return ret;
+}
 
 /***********************************************************************
  *              WSAStringToAddressA                      (WS2_32.80)
diff --git a/dlls/ws2_32/ws2_32.spec b/dlls/ws2_32/ws2_32.spec
index d08d59a522c..1b096b57361 100644
--- a/dlls/ws2_32/ws2_32.spec
+++ b/dlls/ws2_32/ws2_32.spec
@@ -53,6 +53,7 @@
 @ stdcall FreeAddrInfoW(ptr)
 @ stdcall GetAddrInfoW(wstr wstr ptr ptr)
 @ stdcall GetNameInfoW(ptr long ptr long ptr long long)
+@ stdcall InetPtonW(long wstr ptr)
 @ stdcall WSApSetPostRoutine(ptr)
 @ stdcall WPUCompleteOverlappedRequest(long ptr long long ptr)
 @ stdcall WSAAccept(long ptr ptr ptr long)