diff --git a/cmd/stepd/main.go b/cmd/stepd/main.go
index 2644f3c..3ed2c15 100644
--- a/cmd/stepd/main.go
+++ b/cmd/stepd/main.go
@@ -31,7 +31,11 @@ func main () {
 		":8080", cli.ValString)
 	flagHTTPErrorDocument := cli.NewInputFlag (
 		0, "http-error-document",
-		"The document to use for displaying http errors.",
+		"The document to use for displaying errors over http.",
+		"", cli.ValString)
+	flagHTTPDirectoryDocument := cli.NewInputFlag (
+		0, "http-directory-document",
+		"The document to use for displaying directory listings over http.",
 		"", cli.ValString)
 	flagDirectories := cli.NewFlag (
 		'd', "directories",
@@ -41,6 +45,7 @@ func main () {
 		flagPidFile,
 		flagHTTPAddress,
 		flagHTTPErrorDocument,
+		flagHTTPDirectoryDocument,
 		flagDirectories,
 		cli.NewHelp())
 	cmd.Syntax = "[OPTIONS]... [DIRECTORY]"
@@ -111,12 +116,13 @@ func main () {
 
 	// set up the HTTP handler
 	handler := stephttp.Handler {
-		Environment:   &environment,
-		Directories:   config.Get("http.serve-directories") == "true",
-		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),
+		Environment:       &environment,
+		Directories:       config.Get("http.serve-directories") == "true",
+		StepExt:           ucontainer.NewSet(slices.Clone(config["http.step-extension"])...),
+		Index:             slices.Clone(config["http.index-file"]),
+		ErrorDocument:     config.Get("http.error-document"),
+		DirectoryDocument: config.Get("http.directory-document"),
+		DenyAll:           ucontainer.NewSet(configFileName),
 	}
 	if len(handler.StepExt) == 0 {
 		handler.StepExt.Add(".step")