diff --git a/src/calibre/gui2/tweak_book/search.py b/src/calibre/gui2/tweak_book/search.py
index 5ce492e9a4..082b5c4240 100644
--- a/src/calibre/gui2/tweak_book/search.py
+++ b/src/calibre/gui2/tweak_book/search.py
@@ -331,7 +331,7 @@ class SearchWidget(QWidget):
         if self.mode == 'regex':
             text = regex.escape(text, special_only=True)
         self.find = text
-        self.find_text.setSelection(0, len(text)+10)
+        self.find_text.lineEdit().setSelection(0, len(text)+10)
 
 # }}}