diff --git a/src/backends/github/API.js b/src/backends/github/API.js
index 1706ee7f..0da3f4f6 100644
--- a/src/backends/github/API.js
+++ b/src/backends/github/API.js
@@ -638,7 +638,7 @@ export default class API {
     })
     .catch((error) => {
       if (error instanceof APIError && error.status === 405) {
-        this.forceMergePR(pullrequest, objects);
+        return this.forceMergePR(pullrequest, objects);
       } else {
         throw error;
       }