diff --git a/include/mbedtls/aria.h b/include/mbedtls/aria.h
index ab6e8e5..6198750 100644
--- a/include/mbedtls/aria.h
+++ b/include/mbedtls/aria.h
@@ -111,7 +111,7 @@
  *                 <li>192 bits</li>
  *                 <li>256 bits</li></ul>
  *
- * \return         \c 0 on success or #MBEDTLS_ERR_ARIA_INVALID_KEY_LENGTH
+ * \return         \c 0 on success or #MBEDTLS_ERR_ARIA_BAD_INPUT_DATA
  *                 on failure.
  */
 int mbedtls_aria_setkey_enc( mbedtls_aria_context *ctx,
@@ -128,7 +128,7 @@
  *                 <li>192 bits</li>
  *                 <li>256 bits</li></ul>
  *
- * \return         \c 0 on success, or #MBEDTLS_ERR_ARIA_INVALID_KEY_LENGTH on failure.
+ * \return         \c 0 on success, or #MBEDTLS_ERR_ARIA_BAD_INPUT_DATA on failure.
  */
 int mbedtls_aria_setkey_dec( mbedtls_aria_context *ctx,
                              const unsigned char *key,
@@ -190,7 +190,7 @@
  * \param input    The buffer holding the input data.
  * \param output   The buffer holding the output data.
  *
- * \return         \c 0 on success, or #MBEDTLS_ERR_ARIA_INVALID_INPUT_LENGTH
+ * \return         \c 0 on success, or #MBEDTLS_ERR_ARIA_BAD_INPUT_DATA
  *                 on failure.
  */
 int mbedtls_aria_crypt_cbc( mbedtls_aria_context *ctx,