diff --git a/mercurial/dirstate.py b/mercurial/dirstate.py
--- a/mercurial/dirstate.py
+++ b/mercurial/dirstate.py
@@ -1112,7 +1112,7 @@
             matcher,
             self._rootdir,
             self._ignorefiles(),
-            self._checkexec,
+            bool(self._checkexec),
             self._lastnormaltime,
             bool(list_clean),
             bool(list_ignored),