diff --git a/channels/rdpgfx/server/rdpgfx_main.c b/channels/rdpgfx/server/rdpgfx_main.c
index 34a77e06e..5fba6de7d 100644
--- a/channels/rdpgfx/server/rdpgfx_main.c
+++ b/channels/rdpgfx/server/rdpgfx_main.c
@@ -1035,7 +1035,7 @@ static UINT
 rdpgfx_send_map_surface_to_scaled_window_pdu(RdpgfxServerContext* context,
                                              const RDPGFX_MAP_SURFACE_TO_SCALED_WINDOW_PDU* pdu)
 {
-	wStream* s = rdpgfx_server_single_packet_new(RDPGFX_CMDID_MAPSURFACETOWINDOW, 26);
+	wStream* s = rdpgfx_server_single_packet_new(RDPGFX_CMDID_MAPSURFACETOSCALEDWINDOW, 26);
 
 	if (!s)
 	{