diff --git a/Orange/widgets/data/owdatasampler.py b/Orange/widgets/data/owdatasampler.py
index 97764e69548..072028beb44 100644
--- a/Orange/widgets/data/owdatasampler.py
+++ b/Orange/widgets/data/owdatasampler.py
@@ -110,7 +110,7 @@ def f():
             addToLayout=False, callback=self.fold_changed)
         form.addRow("Selected fold:", self.selected_fold_spin)
 
-        gui.appendRadioButton(sampling, "Boostrap")
+        gui.appendRadioButton(sampling, "Bootstrap")
 
         self.sql_box = gui.vBox(self.controlArea, "Sampling Type")
         sampling = gui.radioButtons(self.sql_box, self, "sampling_type",