diff --git a/src/finder-sync/finder-sync-host.cpp b/src/finder-sync/finder-sync-host.cpp
index 0a54bdf0e..f49f30b29 100644
--- a/src/finder-sync/finder-sync-host.cpp
+++ b/src/finder-sync/finder-sync-host.cpp
@@ -27,6 +27,15 @@ enum PathStatus {
     MAX_SYNC_STATUS,
 };
 
+namespace {
+struct QtLaterDeleter {
+public:
+  void operator()(QObject *ptr) {
+    ptr->deleteLater();
+  }
+};
+} // anonymous namespace
+
 static const char *const kPathStatus[] = {
     "none", "syncing", "error", "ignored", "synced", "readonly", "paused", NULL,
 };
@@ -40,7 +49,7 @@ static inline PathStatus getPathStatusFromString(const QString &status) {
 
 static std::mutex update_mutex_;
 static std::vector<LocalRepo> watch_set_;
-static std::unique_ptr<GetSharedLinkRequest> get_shared_link_req_;
+static std::unique_ptr<GetSharedLinkRequest, QtLaterDeleter> get_shared_link_req_;
 
 FinderSyncHost::FinderSyncHost() : rpc_client_(new SeafileRpcClient) {
     rpc_client_->connectDaemon();
diff --git a/src/finder-sync/finder-sync-listener.mm b/src/finder-sync/finder-sync-listener.mm
index f0570d2a3..54f03753a 100644
--- a/src/finder-sync/finder-sync-listener.mm
+++ b/src/finder-sync/finder-sync-listener.mm
@@ -52,10 +52,9 @@ @interface FinderSyncListener : NSObject <NSMachPortDelegate>
     uint32_t status;
 };
 
-template <typename T>
 struct QtLaterDeleter {
 public:
-  void operator()(T *ptr) {
+  void operator()(QObject *ptr) {
     ptr->deleteLater();
   }
 };
@@ -67,7 +66,7 @@ void operator()(T *ptr) {
 // atomic value
 static volatile int32_t finder_sync_started_ = 0;
 static FinderSyncListener *finder_sync_listener_ = nil;
-static std::unique_ptr<FinderSyncHost, QtLaterDeleter<FinderSyncHost>> finder_sync_host_;
+static std::unique_ptr<FinderSyncHost, QtLaterDeleter> finder_sync_host_;
 static constexpr uint32_t kFinderSyncProtocolVersion = 0x00000002;
 
 static void handleGetFileStatus(mach_msg_command_rcv_t* msg) {