diff --git a/randr/rrcrtc.c b/randr/rrcrtc.c
index ac853eab6..d1a51f0aa 100644
--- a/randr/rrcrtc.c
+++ b/randr/rrcrtc.c
@@ -689,6 +689,12 @@ rrCheckPixmapBounding(ScreenPtr pScreen,
     new_width = newsize->x2;
     new_height = newsize->y2;
 
+    if (new_width < screen_pixmap->drawable.width)
+        new_width = screen_pixmap->drawable.width;
+
+    if (new_height < screen_pixmap->drawable.height)
+        new_height = screen_pixmap->drawable.height;
+
     if (new_width == screen_pixmap->drawable.width &&
         new_height == screen_pixmap->drawable.height) {
     } else {