diff --git a/cmd/stfs/cmd/serve_ftp.go b/cmd/stfs/cmd/serve_ftp.go
index 4100c40..ce5d263 100644
--- a/cmd/stfs/cmd/serve_ftp.go
+++ b/cmd/stfs/cmd/serve_ftp.go
@@ -248,7 +248,7 @@ func init() {
 	serveFTPCmd.PersistentFlags().StringP(signatureRecipientFlag, "r", "", "Path to the public key to verify with")
 
 	serveFTPCmd.PersistentFlags().StringP(compressionLevelFlag, "l", config.CompressionLevelBalancedKey, fmt.Sprintf("Compression level to use (default %v, available are %v)", config.CompressionLevelBalancedKey, config.KnownCompressionLevels))
-	serveFTPCmd.PersistentFlags().StringP(laddrFlag, "a", "localhost:1337", "Listen address")
+	serveFTPCmd.PersistentFlags().StringP(laddrFlag, "a", ":1337", "Listen address")
 	serveFTPCmd.PersistentFlags().StringP(cacheFileSystemFlag, "n", config.NoneKey, fmt.Sprintf("File system cache to use (default %v, available are %v)", config.NoneKey, config.KnownFileSystemCacheTypes))
 	serveFTPCmd.PersistentFlags().StringP(cacheWriteFlag, "q", config.WriteCacheTypeFile, fmt.Sprintf("Write cache to use (default %v, available are %v)", config.WriteCacheTypeFile, config.KnownWriteCacheTypes))
 	serveFTPCmd.PersistentFlags().DurationP(cacheDurationFlag, "u", time.Hour, "Duration until cache is invalidated")
diff --git a/cmd/stfs/cmd/serve_http.go b/cmd/stfs/cmd/serve_http.go
index 64610f2..d586f08 100644
--- a/cmd/stfs/cmd/serve_http.go
+++ b/cmd/stfs/cmd/serve_http.go
@@ -171,7 +171,7 @@ func init() {
 	serveHTTPCmd.PersistentFlags().StringP(identityFlag, "i", "", "Path to private key of recipient that has been encrypted for")
 	serveHTTPCmd.PersistentFlags().StringP(passwordFlag, "p", "", "Password for the private key")
 	serveHTTPCmd.PersistentFlags().StringP(recipientFlag, "r", "", "Path to the public key to verify with")
-	serveHTTPCmd.PersistentFlags().StringP(laddrFlag, "a", "localhost:1337", "Listen address")
+	serveHTTPCmd.PersistentFlags().StringP(laddrFlag, "a", ":1337", "Listen address")
 	serveHTTPCmd.PersistentFlags().StringP(cacheFileSystemFlag, "n", config.NoneKey, fmt.Sprintf("File system cache to use (default %v, available are %v)", config.NoneKey, config.KnownFileSystemCacheTypes))
 	serveHTTPCmd.PersistentFlags().DurationP(cacheDurationFlag, "u", time.Hour, "Duration until cache is invalidated")
 	serveHTTPCmd.PersistentFlags().StringP(cacheDirFlag, "w", cacheDir, "Directory to use if dir cache is enabled")