diff --git a/ts/windows/main/start.ts b/ts/windows/main/start.ts
index 2e47f0e464..0c8540a7ee 100644
--- a/ts/windows/main/start.ts
+++ b/ts/windows/main/start.ts
@@ -60,6 +60,8 @@ if (!isProduction(window.SignalContext.getVersion())) {
     getConversation: (id: string) => window.ConversationController.get(id),
     getMessageById: (id: string) =>
       window.MessageCache.__DEPRECATED$getById(id),
+    getMessageBySentAt: (timestamp: number) =>
+      window.MessageCache.findBySentAt(timestamp, () => true),
     getReduxState: () => window.reduxStore.getState(),
     getSfuUrl: () => window.Signal.Services.calling._sfuUrl,
     getIceServerOverride: () =>