diff --git a/dlls/ntdll/unix/socket.c b/dlls/ntdll/unix/socket.c
index 549981388c7..38cb80997ff 100644
--- a/dlls/ntdll/unix/socket.c
+++ b/dlls/ntdll/unix/socket.c
@@ -1655,6 +1655,26 @@ NTSTATUS sock_ioctl( HANDLE handle, HANDLE event, PIO_APC_ROUTINE apc, void *apc
         case IOCTL_AFD_WINE_GET_SO_REUSEADDR:
             return do_getsockopt( handle, io, SOL_SOCKET, SO_REUSEADDR, out_buffer, out_size );
 
+        /* BSD socket SO_REUSEADDR is not 100% compatible to winsock semantics;
+         * however, using it the BSD way fixes bug 8513 and seems to be what
+         * most programmers assume, anyway */
+        case IOCTL_AFD_WINE_SET_SO_REUSEADDR:
+        {
+            int fd, needs_close = FALSE;
+            NTSTATUS status;
+            int ret;
+
+            if ((status = server_get_unix_fd( handle, 0, &fd, &needs_close, NULL, NULL )))
+                return status;
+
+            ret = setsockopt( fd, SOL_SOCKET, SO_REUSEADDR, in_buffer, in_size );
+#ifdef __APPLE__
+            if (!ret) ret = setsockopt( fd, SOL_SOCKET, SO_REUSEPORT, in_buffer, in_size );
+#endif
+            if (needs_close) close( fd );
+            return ret ? sock_errno_to_status( errno ) : STATUS_SUCCESS;
+        }
+
         default:
         {
             if ((code >> 16) == FILE_DEVICE_NETWORK)
diff --git a/dlls/ws2_32/socket.c b/dlls/ws2_32/socket.c
index 11e6719fcb0..89fb7d3462b 100644
--- a/dlls/ws2_32/socket.c
+++ b/dlls/ws2_32/socket.c
@@ -3572,6 +3572,9 @@ int WINAPI WS_setsockopt(SOCKET s, int level, int optname,
         case WS_SO_RCVTIMEO:
             return server_setsockopt( s, IOCTL_AFD_WINE_SET_SO_RCVTIMEO, optval, optlen );
 
+        case WS_SO_REUSEADDR:
+            return server_setsockopt( s, IOCTL_AFD_WINE_SET_SO_REUSEADDR, optval, optlen );
+
         /* Some options need some conversion before they can be sent to
          * setsockopt. The conversions are done here, then they will fall through
          * to the general case. Special options that are not passed to
@@ -3588,16 +3591,6 @@ int WINAPI WS_setsockopt(SOCKET s, int level, int optname,
             convert_sockopt(&level, &optname);
             break;
 
-        /* The options listed here don't need any special handling. Thanks to
-         * the conversion happening above, options from there will fall through
-         * to this, too.*/
-        /* BSD socket SO_REUSEADDR is not 100% compatible to winsock semantics.
-         * however, using it the BSD way fixes bug 8513 and seems to be what
-         * most programmers assume, anyway */
-        case WS_SO_REUSEADDR:
-            convert_sockopt(&level, &optname);
-            break;
-
         /* SO_DEBUG is a privileged operation, ignore it. */
         case WS_SO_DEBUG:
             TRACE("Ignoring SO_DEBUG\n");
diff --git a/include/wine/afd.h b/include/wine/afd.h
index f337ec361b2..d522b8a289f 100644
--- a/include/wine/afd.h
+++ b/include/wine/afd.h
@@ -174,6 +174,7 @@ struct afd_get_events_params
 #define IOCTL_AFD_WINE_SET_SO_RCVTIMEO      CTL_CODE(FILE_DEVICE_NETWORK, 231, METHOD_BUFFERED, FILE_ANY_ACCESS)
 #define IOCTL_AFD_WINE_GET_SO_RCVTIMEO      CTL_CODE(FILE_DEVICE_NETWORK, 232, METHOD_BUFFERED, FILE_ANY_ACCESS)
 #define IOCTL_AFD_WINE_GET_SO_REUSEADDR     CTL_CODE(FILE_DEVICE_NETWORK, 233, METHOD_BUFFERED, FILE_ANY_ACCESS)
+#define IOCTL_AFD_WINE_SET_SO_REUSEADDR     CTL_CODE(FILE_DEVICE_NETWORK, 234, METHOD_BUFFERED, FILE_ANY_ACCESS)
 
 struct afd_create_params
 {