diff --git a/ankiqt/ui/cardlist.py b/ankiqt/ui/cardlist.py
index 6cce7f791..f32cd8723 100644
--- a/ankiqt/ui/cardlist.py
+++ b/ankiqt/ui/cardlist.py
@@ -909,8 +909,8 @@ where id in (%s)""" % ",".join([
                 self.deck.resetCards(self.selectedCards())
             else:
                 try:
-                    min = float(str(frm.rangeMin.text()))
-                    max = float(str(frm.rangeMax.text()))
+                    min = float(frm.rangeMin.value())
+                    max = float(frm.rangeMax.value())
                 except ValueError:
                     ui.utils.showInfo(
                         _("Please enter a valid start and end range."),