diff --git a/drivers/media/usb/gspca/jpeg.h b/drivers/media/usb/gspca/jpeg.h
index ab54910418b4ccfa7e07a179f4dbe82ecef00d17..0aa2b671faa417120217c9ae960e79013171f213 100644
--- a/drivers/media/usb/gspca/jpeg.h
+++ b/drivers/media/usb/gspca/jpeg.h
@@ -154,7 +154,9 @@ static void jpeg_set_qual(u8 *jpeg_hdr,
 {
 	int i, sc;
 
-	if (quality < 50)
+	if (quality <= 0)
+		sc = 5000;
+	else if (quality < 50)
 		sc = 5000 / quality;
 	else
 		sc = 200 - quality * 2;