diff --git a/test/shell/duplicate-vgnames.sh b/test/shell/duplicate-vgnames.sh
index 0f98f9c37..0bbc08937 100644
--- a/test/shell/duplicate-vgnames.sh
+++ b/test/shell/duplicate-vgnames.sh
@@ -399,7 +399,7 @@ grep $UUID2 out | grep active
 grep $UUID3 out | not grep active
 vgchange -an
 
-not vgchange -ay $vg1
+not vgchange -ay -vvvv $vg1
 lvs --foreign -o vguuid,active |tee out
 grep $UUID1 out | not grep active
 grep $UUID2 out | not grep active