diff --git a/tests/bootstrap-aio.yml b/tests/bootstrap-aio.yml
index bf3427151b..1e7d267e29 100644
--- a/tests/bootstrap-aio.yml
+++ b/tests/bootstrap-aio.yml
@@ -69,9 +69,11 @@
         - name: keystone.yml.aio
         - name: heat.yml.aio
         - name: tacker.yml.aio
-
     pip_install_upper_constraints_proto: "{{ ansible_python_version | version_compare('2.7.9', '>=') | ternary('https','http') }}"
-    sftp_subsystem: "{{ (ansible_pkg_mgr == 'apt') | ternary('sftp /usr/lib/openssh/sftp-server','sftp /usr/libexec/openssh/sftp-server') }}"
+    sftp_subsystem:
+        'apt': 'sftp /usr/lib/openssh/sftp-server'
+        'yum': 'sftp /usr/libexec/openssh/sftp-server'
+        'zypper': 'sftp /usr/lib/ssh/sftp-server'
     sshd:
       ListenAddress:
         - 0.0.0.0
@@ -103,7 +105,7 @@
       PrintLastLog: no
       TCPKeepAlive: yes
       AcceptEnv: "LANG LC_*"
-      Subsystem: "{{ sftp_subsystem }}"
+      Subsystem: "{{ sftp_subsystem[ansible_pkg_mgr] }}"
       UsePAM: yes
       UseDNS: no
       X11Forwarding: no