diff --git a/packages/xo-server/src/xo-mixins/proxies.js b/packages/xo-server/src/xo-mixins/proxies.js
index 862f46704..265ee1bc2 100644
--- a/packages/xo-server/src/xo-mixins/proxies.js
+++ b/packages/xo-server/src/xo-mixins/proxies.js
@@ -227,8 +227,8 @@ export default class Proxy {
     await this.checkProxyHealth(id)
   }
 
-  checkProxyHealth(id) {
-    return this.callProxyMethod(id, 'system.getServerVersion')
+  async checkProxyHealth(id) {
+    await this.callProxyMethod(id, 'system.getServerVersion')
   }
 
   async callProxyMethod(id, method, params, expectStream = false) {