diff --git a/hw/xfree86/modes/xf86Crtc.c b/hw/xfree86/modes/xf86Crtc.c
index 304d503c8..cd978aed5 100644
--- a/hw/xfree86/modes/xf86Crtc.c
+++ b/hw/xfree86/modes/xf86Crtc.c
@@ -1038,8 +1038,8 @@ xf86DefaultScreenLimits (ScrnInfoPtr scrn, int *widthp, int *heightp,
 
 	if (crtc->enabled)
 	{
-	    crtc_width = crtc->x + xf86ModeWidth (&crtc->desiredMode, crtc->desiredRotation);
-	    crtc_height = crtc->y + xf86ModeHeight (&crtc->desiredMode, crtc->desiredRotation);
+	    crtc_width = crtc->desiredX + xf86ModeWidth (&crtc->desiredMode, crtc->desiredRotation);
+	    crtc_height = crtc->desiredY + xf86ModeHeight (&crtc->desiredMode, crtc->desiredRotation);
 	}
 	if (!canGrow) {
 	    for (o = 0; o < config->num_output; o++)