diff --git a/src/calibre/gui2/dialogs/check_library.py b/src/calibre/gui2/dialogs/check_library.py
index cf51999559..1cd11e7807 100644
--- a/src/calibre/gui2/dialogs/check_library.py
+++ b/src/calibre/gui2/dialogs/check_library.py
@@ -44,14 +44,10 @@ class CheckLibraryDialog(QDialog):
         self.delete = QPushButton('Delete &marked')
         self.delete.setDefault(False)
         self.delete.clicked.connect(self.delete_marked)
-        self.cancel = QPushButton('&Cancel')
-        self.cancel.setDefault(False)
-        self.cancel.clicked.connect(self.reject)
         self.bbox = QDialogButtonBox(self)
-        self.bbox.addButton(self.copy, QDialogButtonBox.ActionRole)
         self.bbox.addButton(self.check, QDialogButtonBox.ActionRole)
         self.bbox.addButton(self.delete, QDialogButtonBox.ActionRole)
-        self.bbox.addButton(self.cancel, QDialogButtonBox.RejectRole)
+        self.bbox.addButton(self.copy, QDialogButtonBox.ActionRole)
         self.bbox.addButton(self.ok, QDialogButtonBox.AcceptRole)
 
         h = QHBoxLayout()