diff --git a/cmd/stepd/main.go b/cmd/stepd/main.go
index 3e81663..2644f3c 100644
--- a/cmd/stepd/main.go
+++ b/cmd/stepd/main.go
@@ -116,6 +116,7 @@ func main () {
 		StepExt:       ucontainer.NewSet(slices.Clone(config["http.step-extension"])...),
 		Index:         slices.Clone(config["http.index-file"]),
 		ErrorDocument: config.Get("http.error-document"),
+		DenyAll:       ucontainer.NewSet(configFileName),
 	}
 	if len(handler.StepExt) == 0 {
 		handler.StepExt.Add(".step")