diff --git a/sublimeibus/sublime-ibus-agent.py b/sublimeibus/sublime-ibus-agent.py
index 9b7a49f..2e1e1e2 100644
--- a/sublimeibus/sublime-ibus-agent.py
+++ b/sublimeibus/sublime-ibus-agent.py
@@ -553,9 +553,13 @@ def __stdin_cb(self, fd, condition):
             print_command('setq', 'error', traceback.format_exc())
         return True
 
+    def __io_error_cb(self, fd, condition):
+        exit()
+
     def run(self):
         glib.idle_add(self.__start_cb)
         glib.io_add_watch(0, glib.IO_IN, self.__stdin_cb)
+        glib.io_add_watch(0, glib.IO_ERR | glib.IO_HUP, self.__io_error_cb)
         while True:
             try:
                 super(IBusModeMainLoop, self).run()
@@ -568,7 +572,6 @@ def run(self):
             if ic:
                 ic.destroy()
 
-
 if __name__ == "__main__":
 
     mainloop = IBusModeMainLoop(bus)