diff --git a/src/calibre/gui2/viewer/ui.py b/src/calibre/gui2/viewer/ui.py
index 71de3ce9d0..25836561a9 100644
--- a/src/calibre/gui2/viewer/ui.py
+++ b/src/calibre/gui2/viewer/ui.py
@@ -64,7 +64,7 @@ class EbookViewer(MainWindow):
         self.toc_container = w = QWidget(self)
         w.l = QVBoxLayout(w)
         self.toc = TOCView(w)
-        self.toc.pressed[QModelIndex].connect(self.toc_clicked)
+        self.toc.clicked[QModelIndex].connect(self.toc_clicked)
         self.toc.searched.connect(self.toc_searched)
         self.toc_search = TOCSearch(self.toc, parent=w)
         w.l.addWidget(self.toc), w.l.addWidget(self.toc_search), w.l.setContentsMargins(0, 0, 0, 0)