diff --git a/xos/synchronizers/vpn/steps/sync_vpntenant.yaml b/xos/synchronizers/vpn/steps/sync_vpntenant.yaml
index 38f26e3..f32f341 100644
--- a/xos/synchronizers/vpn/steps/sync_vpntenant.yaml
+++ b/xos/synchronizers/vpn/steps/sync_vpntenant.yaml
@@ -6,7 +6,7 @@
   sudo: yes
   vars:
     ca_crt: {{ ca_crt }}
-    server_crt: {{ server_crt }}
+    server_crt: "{{ server_crt }}"
     server_key: {{ server_key }}
     server_network: {{ server_network }}
     is_persistent: {{ is_persistent }}
@@ -19,7 +19,7 @@
     apt: name=openvpn state=present update_cache=yes
 
   - name: stop openvpn
-    shell: killall openvpn | true
+    shell: killall openvpn || true
 
   - name: erase server key
     shell: rm -f server.key