diff --git a/src/calibre/gui2/metadata/diff.py b/src/calibre/gui2/metadata/diff.py
index 62149d9448..11f861bf23 100644
--- a/src/calibre/gui2/metadata/diff.py
+++ b/src/calibre/gui2/metadata/diff.py
@@ -579,7 +579,7 @@ class CompareMany(QDialog):
             if reject_all_tooltip:
                 b.setToolTip(reject_all_tooltip)
             b.clicked.connect(self.reject_all_remaining)
-            self.sb = b = bb.addButton(_('&Reject'), bb.ActionRole)
+            self.sb = b = bb.addButton(_('R&eject'), bb.ActionRole)
             b.clicked.connect(partial(self.next_item, False))
             b.setIcon(QIcon(I('minus.png'))), b.setAutoDefault(False)
             if reject_button_tooltip: