1 files changed, 6 insertions, 2 deletions
diff --git a/cast128.c b/cast128.c
index 75783e5d..4abbafb3 100644
--- a/cast128.c
+++ b/cast128.c
@@ -29,13 +29,17 @@
  * MA 02111-1307, USA.
  */
 
+#if HAVE_CONFIG_H
+# include "config.h"
+#endif
+
+#include <assert.h>
+
 #include "cast128.h"
 #include "cast128_sboxes.h"
 
 #include "macros.h"
 
-#include <assert.h>
-
 #define CAST_SMALL_KEY 10
 #define CAST_SMALL_ROUNDS 12
 #define CAST_FULL_ROUNDS 16