diff --git a/src/common/options.c b/src/common/options.c
--- a/src/common/options.c
+++ b/src/common/options.c
@@ -17,6 +17,8 @@
   along with DistRen.  If not, see <http://www.gnu.org/licenses/>.
 */
 
+#include "common/config.h"
+
 #include "common/options.h"
 
 #include "common/asprintf.h"