diff --git a/linux/scim_kmfl_imengine/src/xkbmap.cpp b/linux/scim_kmfl_imengine/src/xkbmap.cpp
index b590298696..c4f899921b 100644
--- a/linux/scim_kmfl_imengine/src/xkbmap.cpp
+++ b/linux/scim_kmfl_imengine/src/xkbmap.cpp
@@ -4,22 +4,23 @@
  * Copyright (C) 2005 SIL International
  * based on source from SCIM Copyright (c) 2004 James Su <suzhe@tsinghua.org.cn>
  *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public
- * License along with this library; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
- *
- */
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
+ *
+ */
 
+#include <stdio.h>
 #include <stdlib.h>
 #include <iostream>
 #include <iomanip>