diff --git a/src/engine.c b/src/engine.c
index 260a806..abeeeef 100644
--- a/src/engine.c
+++ b/src/engine.c
@@ -19,6 +19,8 @@ struct _IBusM17NEngine {
     IBusProperty    *setup_prop;
     IBusPropList    *prop_list;
     gchar *config_section;
+    IBusProperty    *show_iok_prop;
+    gchar *keymap_name;
 };
 
 struct _IBusM17NEngineClass {
@@ -218,10 +220,23 @@ ibus_m17n_engine_init (IBusM17NEngine *m17n)
                                           NULL);
     g_object_ref_sink (m17n->setup_prop);
 
+    label = ibus_text_new_from_string ("iok");
+    m17n->show_iok_prop = ibus_property_new ("iok",
+                                             PROP_TYPE_NORMAL,
+                                             label,
+                                             "/usr/share/pixmaps/iok.xpm",
+                                             label,
+                                             TRUE,
+                                             FALSE,
+                                             0,
+                                             NULL);
+    g_object_ref_sink (m17n->show_iok_prop);
+
     m17n->prop_list = ibus_prop_list_new ();
     g_object_ref_sink (m17n->prop_list);
     ibus_prop_list_append (m17n->prop_list,  m17n->status_prop);
     ibus_prop_list_append (m17n->prop_list, m17n->setup_prop);
+    ibus_prop_list_append (m17n->prop_list,  m17n->show_iok_prop);
 
     m17n->table = ibus_lookup_table_new (9, 0, TRUE, TRUE);
     g_object_ref_sink (m17n->table);
@@ -248,6 +263,7 @@ ibus_m17n_engine_constructor (GType                   type,
 
     engine_name = ibus_engine_get_name ((IBusEngine *) m17n);
     g_assert (engine_name);
+    m17n->keymap_name =  g_strdup (engine_name);
 
     strv = g_strsplit (engine_name, ":", 3);
 
@@ -257,6 +273,10 @@ ibus_m17n_engine_constructor (GType                   type,
     lang = strv[1];
     name = strv[2];
 
+    /* show iok icon for inscript */
+    if(strcmp (name, "inscript") == 0 || strcmp (name , "inscript2") == 0)
+        ibus_property_set_visible (m17n->show_iok_prop, TRUE);
+
     if (im_table == NULL) {
         im_table = g_hash_table_new_full (g_str_hash,
                                           g_str_equal,
@@ -369,6 +389,11 @@ ibus_m17n_engine_destroy (IBusM17NEngine *m17n)
         m17n->setup_prop = NULL;
     }
 
+    if (m17n->show_iok_prop) {
+        g_object_unref (m17n->show_iok_prop);
+        m17n->show_iok_prop = NULL;
+    }
+
     if (m17n->table) {
         g_object_unref (m17n->table);
         m17n->table = NULL;
@@ -669,6 +694,19 @@ ibus_m17n_engine_property_activate (IBusEngine  *engine,
                                  LIBEXECDIR, engine_name);
         g_spawn_command_line_async (setup, NULL);
         g_free (setup);
+    } else if (g_strcmp0 (prop_name, "iok") == 0) {
+        gchar **strv;
+        gchar cmd[80];
+
+        strv = g_strsplit (m17n->keymap_name, ":", 3);
+        g_assert (g_strv_length (strv) == 3);
+        g_assert (g_strcmp0 (strv[0], "m17n") == 0);
+
+        sprintf (cmd, "/usr/bin/iok -n %s", strv[1]);
+        g_debug ("keymap name = %s,prop_name=%s, prop_state=%d", m17n->keymap_name, prop_name, prop_state);
+        g_strfreev (strv);
+
+        g_spawn_command_line_async(cmd, NULL);
     }
     parent_class->property_activate (engine, prop_name, prop_state);
 }