diff --git a/include/mbedtls/asn1.h b/include/mbedtls/asn1.h
index 30b0ed2..f71a060 100644
--- a/include/mbedtls/asn1.h
+++ b/include/mbedtls/asn1.h
@@ -253,7 +253,7 @@
  *              with the requested tag.
  * \return      #MBEDTLS_ERR_ASN1_OUT_OF_DATA if the ASN.1 element
  *              would end beyond \p end.
- * \return      #MBEDTLS_ERR_ASN1_INVALID_LENGTH if the length is unparseable.
+ * \return      #MBEDTLS_ERR_ASN1_INVALID_LENGTH if the length is unparsable.
  */
 int mbedtls_asn1_get_tag( unsigned char **p,
                           const unsigned char *end,