diff --git a/utils/rclionice.cpp b/utils/rclionice.cpp
index 31072cb..a577615 100644
--- a/utils/rclionice.cpp
+++ b/utils/rclionice.cpp
@@ -14,6 +14,10 @@
* Free Software Foundation, Inc.,
* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
+
+#include <sys/types.h>
+#include <unistd.h>
+
#include <stdio.h>
#include "rclionice.h"