diff --git a/reactos/win32ss/user/winsrv/consrv.cmake b/reactos/win32ss/user/winsrv/consrv.cmake
index ffae407e460..f9d17bd6fba 100644
--- a/reactos/win32ss/user/winsrv/consrv.cmake
+++ b/reactos/win32ss/user/winsrv/consrv.cmake
@@ -22,6 +22,7 @@ list(APPEND CONSRV_SOURCE
     consrv/condrv/graphics.c
     consrv/condrv/text.c
     consrv/frontends/input.c
+    consrv/frontends/gui/fullscreen.c
     consrv/frontends/gui/guiterm.c
     consrv/frontends/gui/guisettings.c
     consrv/frontends/gui/graphics.c