diff --git a/src/calibre/gui2/viewer/bookmarks.py b/src/calibre/gui2/viewer/bookmarks.py
index 66a73916eb..d0592f9469 100644
--- a/src/calibre/gui2/viewer/bookmarks.py
+++ b/src/calibre/gui2/viewer/bookmarks.py
@@ -92,6 +92,7 @@ class BookmarkManager(QWidget):
         self.l = l = QGridLayout(self)
         l.setContentsMargins(0, 0, 0, 0)
         self.setLayout(l)
+        self.toc = parent.toc
 
         self.bookmarks_list = bl = BookmarksList(self)
         bl.itemChanged.connect(self.item_changed)
@@ -340,7 +341,7 @@ class BookmarkManager(QWidget):
                 import_current_bookmarks(imported)
 
     def create_new_bookmark(self, pos_data):
-        base_default_title = _('Bookmark')
+        base_default_title = self.toc.model().title_for_current_node or _('Bookmark')
         all_titles = {bm['title'] for bm in self.get_bookmarks()}
         c = 0
         while True:
diff --git a/src/calibre/gui2/viewer/toc.py b/src/calibre/gui2/viewer/toc.py
index 633ad0105a..453579439e 100644
--- a/src/calibre/gui2/viewer/toc.py
+++ b/src/calibre/gui2/viewer/toc.py
@@ -227,7 +227,6 @@ class TOC(QStandardItemModel):
             for t in toc['children']:
                 self.appendRow(TOCItem(t, 0, depth_first, normal_font, emphasis_font))
         self.node_id_map = {x.node_id: x for x in self.all_items}
-        self.currently_viewed_entry = None
 
     def find_items(self, query):
         for item in self.all_items:
@@ -284,6 +283,12 @@ class TOC(QStandardItemModel):
     def viewed_nodes(self):
         return tuple(node for node in self.all_items if node.is_being_viewed)
 
+    @property
+    def title_for_current_node(self):
+        for node in reversed(self.all_items):
+            if node.is_being_viewed:
+                return node.title
+
     @property
     def as_plain_text(self):
         lines = []