diff --git a/libavutil/aes.c b/libavutil/aes.c
index e21599ab95..da4ecbbd97 100644
--- a/libavutil/aes.c
+++ b/libavutil/aes.c
@@ -177,7 +177,7 @@ int av_aes_init(AVAES *a, const uint8_t *key, int key_bits, int decrypt) {
         for(i=1; i<rounds; i++){
             uint8_t tmp[3][16];
             memcpy(tmp[2], a->round_key[i][0], 16);
-            subshift(tmp[1], 0, sbox);
+            subshift(&tmp[1], 0, sbox);
             mix(tmp, dec_multbl, 1, 3);
             memcpy(a->round_key[i][0], tmp[0], 16);
         }