diff --git a/src/calibre/gui2/library/views.py b/src/calibre/gui2/library/views.py
index d90bfc1c14..008721eec2 100644
--- a/src/calibre/gui2/library/views.py
+++ b/src/calibre/gui2/library/views.py
@@ -24,7 +24,7 @@ from calibre.gui2.library.alternate_views import AlternateViews, setup_dnd_inter
 from calibre.utils.config import tweaks, prefs
 from calibre.gui2 import error_dialog, gprefs, FunctionDispatcher
 from calibre.gui2.library import DEFAULT_SORT
-from calibre.constants import filesystem_encoding, isosx
+from calibre.constants import filesystem_encoding
 from calibre import force_unicode
 
 class HeaderView(QHeaderView):  # {{{
@@ -1073,18 +1073,6 @@ class BooksView(QTableView):  # {{{
     def row_count(self):
         return self._model.count()
 
-    if isosx:
-        # Qt 5 item view handling of return key on OS X seems to be broken
-        # See https://bugreports.qt-project.org/browse/QTBUG-40938
-        def keyPressEvent(self, ev):
-            if ev.key() in (Qt.Key_Enter, Qt.Key_Return) and self.state() != self.EditingState:
-                ci = self.currentIndex()
-                if ci.isValid() and ci.flags() & Qt.ItemIsEditable:
-                    if self.edit(ci, self.EditKeyPressed, ev):
-                        ev.accept()
-                        return
-            return QTableView.keyPressEvent(self, ev)
-
 # }}}
 
 class DeviceBooksView(BooksView):  # {{{