diff --git a/src/greeter.c b/src/greeter.c
index 8ef5250..b56ae8d 100644
--- a/src/greeter.c
+++ b/src/greeter.c
@@ -937,6 +937,8 @@ greeter_finalize (GObject *object)
     if (self->priv->from_greeter_channel)
         g_io_channel_unref (self->priv->from_greeter_channel);
 
+    close(g_io_channel_unix_get_fd(self->priv->to_greeter_channel));
+    close(g_io_channel_unix_get_fd(self->priv->from_greeter_channel));
     G_OBJECT_CLASS (greeter_parent_class)->finalize (object);
 }
 
diff --git a/src/session.c b/src/session.c
index bc509cd..b0f09cf 100644
--- a/src/session.c
+++ b/src/session.c
@@ -245,6 +245,8 @@ session_watch_cb (GPid pid, gint status, gpointer data)
     if (session->priv->is_guest)
         guest_account_cleanup (session->priv->username);
 
+    close(session->priv->to_child_input);
+    close(session->priv->from_child_output);
     /* Drop our reference on the child process, it has terminated */
     g_object_unref (session);
 }