diff --git a/ssh-sk-client.c b/ssh-sk-client.c
index 35e268472..92ac0e7e1 100644
--- a/ssh-sk-client.c
+++ b/ssh-sk-client.c
@@ -15,6 +15,8 @@
  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  */
 
+#include "includes.h"
+
 #include <sys/types.h>
 #include <sys/socket.h>
 #include <sys/wait.h>