diff --git a/include/mbedtls/aes.h b/include/mbedtls/aes.h
index 5fb020f..b410b5a 100644
--- a/include/mbedtls/aes.h
+++ b/include/mbedtls/aes.h
@@ -91,7 +91,7 @@
     uint32_t frk[8];            /*!< Fake AES round keys. */
 #endif
 #if defined(MBEDTLS_VALIDATE_AES_KEYS_INTEGRITY)
-    uint16_t crc;               /*!< CRC-16 of the set key */
+    uint32_t hash;               /*!< hash of the set key */
 #endif
 #if defined(MBEDTLS_AES_ONLY_128_BIT_KEY_LENGTH) && !defined(MBEDTLS_PADLOCK_C)
     uint32_t buf[44];           /*!< Unaligned data buffer */