diff --git a/omvs_main.c b/omvs_main.c
index 1fb380f..ee1d28a 100644
--- a/omvs_main.c
+++ b/omvs_main.c
@@ -1,11 +1,13 @@
 #include <string.h>
 #include <pcap.h>
+#include <glib.h>
+#include <glib/gstdio.h>
 #include <gio/gio.h>
 #include <gst/gst.h>
 
 static gint _omvs_net_dev_idx;
 static gboolean _omvs_list_devs;
-static gchar *_omvs_output = "omvs_out.txt";
+static gchar *_omvs_outdir = "omvs_out";
 static gint _omvs_jobs = 1;
 static gint _omvs_sleep = 1000;
 static gint _omvs_timeout = 10000;
@@ -23,8 +25,8 @@ static GOptionEntry _omvs_entries[] =
     "List network device interfaces", NULL },
   { "jobs", 'j', 0, G_OPTION_ARG_INT, &_omvs_jobs,
     "Number of jobs", "jobs" },
-  { "output", 'o', 0, G_OPTION_ARG_FILENAME, &_omvs_output,
-    "Output filename", "filename" },
+  { "output", 'o', 0, G_OPTION_ARG_FILENAME, &_omvs_outdir,
+    "Output directory name", "dirname" },
   { "sleep", 's', 0, G_OPTION_ARG_INT, &_omvs_sleep,
     "Sleep time(milliseconds) between scans", "ms" },
   { "timeout", 't', 0, G_OPTION_ARG_INT, &_omvs_timeout,
@@ -224,6 +226,8 @@ int main(int argc, char *argv[]) {
   gint idx_ipaddr;
   OMVSScanner omvs_scanner;
 
+  g_mkdir(_omvs_outdir, 0755);
+
   if (_omvs_init_net_devs_info() != 0) {
     ret = -5;
     goto finish_return2;