diff --git a/lib/roken/rand.c b/lib/roken/rand.c
index cfae5107e..03239d7dc 100644
--- a/lib/roken/rand.c
+++ b/lib/roken/rand.c
@@ -30,6 +30,7 @@
  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  * SUCH DAMAGE.
  */
+#include <config.h>
 
 #include "roken.h"