diff --git a/tests/generic/280 b/tests/generic/280
index 815a2c56..7a2d1d01 100755
--- a/tests/generic/280
+++ b/tests/generic/280
@@ -61,9 +61,10 @@ quotacheck -u -g $SCRATCH_MNT 2>/dev/null
 quotaon $SCRATCH_MNT 2>/dev/null
 xfs_freeze -f $SCRATCH_MNT
 setquota -u root 1 2 3 4 $SCRATCH_MNT &
+pid=$!
 sleep 1
 xfs_freeze -u $SCRATCH_MNT
-sleep 1
+wait $pid
 umount $SCRATCH_DEV
 
 # Failure comes in the form of a deadlock.