diff --git a/test/shell/lvchange-rebuild-raid.sh b/test/shell/lvchange-rebuild-raid.sh
index 6b919411b..df6a8cb3e 100644
--- a/test/shell/lvchange-rebuild-raid.sh
+++ b/test/shell/lvchange-rebuild-raid.sh
@@ -21,7 +21,7 @@ aux prepare_vg 8
 # Delay legs so that rebuilding status characters can be read
 for d in $(< DEVICES)
 do
-	aux delay_dev "$d" 0 15 $(get first_extent_sector "$d")
+	aux delay_dev "$d" 0 20 $(get first_extent_sector "$d")
 done
 
 # rhbz 1064592