1 files changed, 1 insertions, 1 deletions
diff --git a/rijndael.h b/rijndael.h
index 857e9f2..003ea54 100644
--- a/rijndael.h
+++ b/rijndael.h
@@ -57,7 +57,7 @@ typedef unsigned char rijn_flatblock_t[sizeof (rijn_block_t)];
 typedef struct {
     rijn_param_t rijn_param;
     int rijn_nrounds;
-    rijn_block_t rijn_roundkey[RIJN_MAX_ROUNDS];
+    rijn_block_t rijn_roundkey[RIJN_MAX_ROUNDS+1];
 } rijn_keysched_t;
 
 void rijn_sched_key(rijn_keysched_t *, rijn_key_t *, const rijn_param_t *);