diff --git a/examples/with-mongodb-mongoose/lib/dbConnect.js b/examples/with-mongodb-mongoose/lib/dbConnect.js
index 698a02e5c46e..f8bca3635137 100644
--- a/examples/with-mongodb-mongoose/lib/dbConnect.js
+++ b/examples/with-mongodb-mongoose/lib/dbConnect.js
@@ -33,7 +33,14 @@ async function dbConnect() {
       return mongoose
     })
   }
-  cached.conn = await cached.promise
+
+  try {
+    cached.conn = await cached.promise
+  } catch (e) {
+    cached.promise = null
+    throw e
+  }
+
   return cached.conn
 }