diff --git a/test/zdtm/static/mnt_ext_auto.desc b/test/zdtm/static/mnt_ext_auto.desc
index 12d1427dd..f899fc8ac 100644
--- a/test/zdtm/static/mnt_ext_auto.desc
+++ b/test/zdtm/static/mnt_ext_auto.desc
@@ -1 +1 @@
-{'flavor': 'ns uns', 'feature': 'mnt_id', 'opts': '--ext-mount-map auto --enable-external-sharing'}
+{'flavor': 'ns uns', 'feature': 'mnt_id', 'opts': '--external mnt[]:s'}
diff --git a/test/zdtm/static/mnt_ext_manual.desc b/test/zdtm/static/mnt_ext_manual.desc
index 75c68c6a8..99e36d7e9 100644
--- a/test/zdtm/static/mnt_ext_manual.desc
+++ b/test/zdtm/static/mnt_ext_manual.desc
@@ -1,4 +1,4 @@
-{   'dopts': '--ext-mount-map /zdtm/static/mnt_ext_manual.test:ZDTM',
+{   'dopts': '--external mnt[/zdtm/static/mnt_ext_manual.test]:ZDTM',
     'feature': 'mnt_id',
     'flavor': 'ns uns',
-    'ropts': '--ext-mount-map ZDTM:/tmp/zdtm_ext_auto.XXXXXX/mtest'}
+    'ropts': '--external mnt[ZDTM]:/tmp/zdtm_ext_auto.XXXXXX/mtest'}