diff --git a/src/shared/ecc.c b/src/shared/ecc.c
index 33c4187..41be02b 100644
--- a/src/shared/ecc.c
+++ b/src/shared/ecc.c
@@ -24,6 +24,10 @@
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
 #include <fcntl.h>
 #include <unistd.h>
 #include <sys/types.h>