diff --git a/app/sql_channel.js b/app/sql_channel.js
index ba5d85343..918b4f3f7 100644
--- a/app/sql_channel.js
+++ b/app/sql_channel.js
@@ -73,12 +73,14 @@ function initialize() {
           makeNewMultipleQueue();
           multipleQueue.pause();
 
+          const multipleQueueRef = multipleQueue;
           const singleQueueRef = singleQueue;
+
           singleQueue = null;
-          const promise = multipleQueue.add(() => fn(...args));
+          const promise = multipleQueueRef.add(() => fn(...args));
           await singleQueueRef.onIdle();
 
-          multipleQueue.start();
+          multipleQueueRef.start();
           result = await promise;
         } else {
           makeNewMultipleQueue();