diff --git a/hw/qxl.c b/hw/qxl.c
index 063970dc28..e7bf3a11a7 100644
--- a/hw/qxl.c
+++ b/hw/qxl.c
@@ -1069,7 +1069,7 @@ static void qxl_enter_vga_mode(PCIQXLDevice *d)
     trace_qxl_enter_vga_mode(d->id);
     qemu_spice_create_host_primary(&d->ssd);
     d->mode = QXL_MODE_VGA;
-    memset(&d->ssd.dirty, 0, sizeof(d->ssd.dirty));
+    dpy_gfx_resize(d->ssd.ds);
     vga_dirty_log_start(&d->vga);
 }