diff --git a/YACReaderLibrary/library_window.cpp b/YACReaderLibrary/library_window.cpp
index 5528dc81..c360faca 100644
--- a/YACReaderLibrary/library_window.cpp
+++ b/YACReaderLibrary/library_window.cpp
@@ -775,8 +775,11 @@ void LibraryWindow::createConnections()
 
 // Search filter
 #ifdef Y_MAC_UI
+#if QT_VERSION >= QT_VERSION_CHECK(6, 0, 0)
     connect(libraryToolBar, &YACReaderMacOSXToolbar::filterChanged, searchDebouncer, &KDToolBox::KDStringSignalDebouncer::throttle);
+#else
     connect(searchEdit, &YACReaderMacOSXSearchLineEdit::filterChanged, searchDebouncer, &KDToolBox::KDStringSignalDebouncer::throttle);
+#endif
     connect(searchDebouncer, &KDToolBox::KDStringSignalDebouncer::triggered, this, [=](QString filter) {
         setSearchFilter(filter);
     });