diff --git a/include/mbedtls/md.h b/include/mbedtls/md.h
index b902355..9b996a9 100644
--- a/include/mbedtls/md.h
+++ b/include/mbedtls/md.h
@@ -304,8 +304,8 @@
 /**
  * \brief           Output HMAC.
  *                  Called after mbedtls_md_hmac_update().
- *                  Usually followed my mbedtls_md_hmac_reset(), mbedtls_md_hmac_starts(),
- *                  or mbedtls_md_free().
+ *                  Usually followed by mbedtls_md_hmac_reset(),
+ *                  mbedtls_md_hmac_starts(), or mbedtls_md_free().
  *
  * \param ctx       HMAC context
  * \param output    Generic HMAC checksum result
@@ -317,7 +317,8 @@
 
 /**
  * \brief           Prepare to authenticate a new message with the same key.
- *                  Called after mbedtls_md_hmac_finish() and before mbedtls_md_hmac_update().
+ *                  Called after mbedtls_md_hmac_finish() and before
+ *                  mbedtls_md_hmac_update().
  *
  * \param ctx       HMAC context to be reset
  *