diff --git a/dlls/ntdll/unix/socket.c b/dlls/ntdll/unix/socket.c
index a727841e917..89d1719d4f5 100644
--- a/dlls/ntdll/unix/socket.c
+++ b/dlls/ntdll/unix/socket.c
@@ -1784,6 +1784,9 @@ NTSTATUS sock_ioctl( HANDLE handle, HANDLE event, PIO_APC_ROUTINE apc, void *apc
             return do_setsockopt( handle, io, IPPROTO_IP, IP_RECVDSTADDR, in_buffer, in_size );
 #endif
 
+        case IOCTL_AFD_WINE_GET_IP_TOS:
+            return do_getsockopt( handle, io, IPPROTO_IP, IP_TOS, out_buffer, out_size );
+
         default:
         {
             if ((code >> 16) == FILE_DEVICE_NETWORK)
diff --git a/dlls/ws2_32/socket.c b/dlls/ws2_32/socket.c
index 37f72c9d62e..7f0e1dfeff2 100644
--- a/dlls/ws2_32/socket.c
+++ b/dlls/ws2_32/socket.c
@@ -2455,6 +2455,8 @@ INT WINAPI WS_getsockopt(SOCKET s, INT level,
             return server_getsockopt( s, IOCTL_AFD_WINE_GET_IP_PKTINFO, optval, optlen );
 
         case WS_IP_TOS:
+            return server_getsockopt( s, IOCTL_AFD_WINE_GET_IP_TOS, optval, optlen );
+
         case WS_IP_TTL:
 #ifdef IP_UNICAST_IF
         case WS_IP_UNICAST_IF:
diff --git a/include/wine/afd.h b/include/wine/afd.h
index fde0fe6db94..24f4ffb9d08 100644
--- a/include/wine/afd.h
+++ b/include/wine/afd.h
@@ -200,6 +200,7 @@ struct afd_get_events_params
 #define IOCTL_AFD_WINE_SET_IP_OPTIONS                   WINE_AFD_IOC(255)
 #define IOCTL_AFD_WINE_GET_IP_PKTINFO                   WINE_AFD_IOC(256)
 #define IOCTL_AFD_WINE_SET_IP_PKTINFO                   WINE_AFD_IOC(257)
+#define IOCTL_AFD_WINE_GET_IP_TOS                       WINE_AFD_IOC(258)
 
 struct afd_create_params
 {