diff --git a/obt/instance.c b/obt/instance.c
index 27bfc033..850fa1c5 100644
--- a/obt/instance.c
+++ b/obt/instance.c
@@ -16,7 +16,8 @@
    See the COPYING file for a copy of the GNU General Public License.
 */
 
-#include "obt/obt.h"
+#include "obt/instance.h"
+#include "obt/util.h"
 
 #ifdef HAVE_STRING_H
 #  include <string.h>