diff --git a/test/shell/snapshot-remove-dmsetup.sh b/test/shell/snapshot-remove-dmsetup.sh
index 610d3c2df..952a7bb9a 100644
--- a/test/shell/snapshot-remove-dmsetup.sh
+++ b/test/shell/snapshot-remove-dmsetup.sh
@@ -58,9 +58,17 @@ dmsetup resume $vg1-snap
 # Try how force removal works
 dmsetup suspend $vg-$lv1
 # needs to fail as device is still open
-not dmsetup remove --force $vg1-snap
+not dmsetup remove --force $vg1-snap &
+
+sleep .5
+
+dmsetup table $vg1-snap | tee out
+should grep -i error out
+
 dmsetup resume $vg-$lv1
 
+wait
+
 # check it really is now 'error' target
 dmsetup table $vg1-snap | tee out
 grep error out