diff --git a/include/mbedtls/ccm.h b/include/mbedtls/ccm.h
index 8f252c4bd..40ee1b3c8 100644
--- a/include/mbedtls/ccm.h
+++ b/include/mbedtls/ccm.h
@@ -1,7 +1,8 @@
 /**
  * \file ccm.h
  *
- * \brief This file contains CCM definitions and functions.
+ * \brief This file provides an API for the CCM authenticated encryption
+ *        mode for block ciphers.
  *
  * CCM combines Counter mode encryption with CBC-MAC authentication
  * for 128-bit block ciphers.