diff --git a/picard/ui/widgets/tristatesortheaderview.py b/picard/ui/widgets/tristatesortheaderview.py
index 29c2d1c4e..4a400e030 100644
--- a/picard/ui/widgets/tristatesortheaderview.py
+++ b/picard/ui/widgets/tristatesortheaderview.py
@@ -50,6 +50,10 @@ class TristateSortHeaderView(QtWidgets.QHeaderView):
 
     def mouseReleaseEvent(self, event):
         if self.is_locked:
+            tooltip = _(
+                "The table is locked. To enable sorting and column resizing\n"
+                "unlock the table in the table header's context menu.")
+            QtWidgets.QToolTip.showText(event.globalPos(), tooltip, self)
             return
 
         if event.button() == QtCore.Qt.LeftButton: