diff --git a/drivers/video/mx3fb.c b/drivers/video/mx3fb.c
index 73688720857445ddb18096a90a80fc22f2f63499..cfdb380ec81ea9943c98a26411c18bfe4c0d3c18 100644
--- a/drivers/video/mx3fb.c
+++ b/drivers/video/mx3fb.c
@@ -1306,7 +1306,7 @@ static int mx3fb_unmap_video_memory(struct fb_info *fbi)
 	dma_free_writecombine(fbi->device, fbi->fix.smem_len,
 			      fbi->screen_base, fbi->fix.smem_start);
 
-	fbi->screen_base = 0;
+	fbi->screen_base = NULL;
 	mutex_lock(&fbi->mm_lock);
 	fbi->fix.smem_start = 0;
 	fbi->fix.smem_len = 0;