diff --git a/packages/accounts-base/accounts_server.js b/packages/accounts-base/accounts_server.js
index d0767854ad..c6d46fc3cf 100644
--- a/packages/accounts-base/accounts_server.js
+++ b/packages/accounts-base/accounts_server.js
@@ -1335,7 +1335,7 @@ export class AccountsServer extends AccountsCommon {
     // Check to see if the developer has a custom way to find the user outside
     // of the general selectors above.
     if (!user && this._additionalFindUserOnExternalLogin) {
-      user = this._additionalFindUserOnExternalLogin({serviceName, serviceData, options})
+      user = await this._additionalFindUserOnExternalLogin({serviceName, serviceData, options})
     }
 
     // Before continuing, run user hook to see if we should continue