diff --git a/test/ftl/dirty_shutdown.sh b/test/ftl/dirty_shutdown.sh
index 186e1a55f..b1e082074 100755
--- a/test/ftl/dirty_shutdown.sh
+++ b/test/ftl/dirty_shutdown.sh
@@ -77,6 +77,7 @@ waitforlisten $svcpid
 
 # Ftl should recover, though with a loss of data (-o config option)
 $rpc_py load_config < $testdir/config/ftl.json
+waitfornbd nbd0
 
 # Write extra data after restore
 dd if=/dev/urandom of=/dev/nbd0 bs=4K count=$chunk_size seek=$offset oflag=dsync
diff --git a/test/ftl/restore.sh b/test/ftl/restore.sh
index 509737039..0632bfc28 100755
--- a/test/ftl/restore.sh
+++ b/test/ftl/restore.sh
@@ -60,6 +60,7 @@ $rootdir/test/app/bdev_svc/bdev_svc & svcpid=$!
 waitforlisten $svcpid
 
 $rpc_py load_config < $testdir/config/ftl.json
+waitfornbd nbd0
 
 mount /dev/nbd0 $mount_dir