diff --git a/include/mbedtls/mbedtls_config.h b/include/mbedtls/mbedtls_config.h
index 4acac9c..407b31e 100644
--- a/include/mbedtls/mbedtls_config.h
+++ b/include/mbedtls/mbedtls_config.h
@@ -4099,7 +4099,7 @@
 /**
  * \def MBEDTLS_SSL_TLS1_3_TICKET_AGE_TOLERANCE
  *
- * Maximum allowd ticket age difference in milliseconds tolerated between
+ * Maximum allowed ticket age difference in milliseconds tolerated between
  * server and client. Default value is 6000. This is not used in TLS 1.2.
  *
  * - The client ticket age is the time difference between the time when the
@@ -4109,11 +4109,11 @@
  *   server receives a proposition from the client to use the ticket and the
  *   time when the ticket was created by the server.
  *
- * The ages might be different due to accuracy of RTC crypstal. The typical
- * accuracy of an RTC crystal is ±100 to ±20 parts per million (360 to 72
- * milliseconds per hour). Default tolerance windows is 6s, thus in the worst
- * case client and servers must sync up their system time every 6000/360/2~=8
- * hours.
+ * The ages might be different due to the client and server clocks not running
+ * at the same pace. The typical accuracy of an RTC crystal is ±100 to ±20 parts
+ * per million (360 to 72 milliseconds per hour). Default tolerance window is
+ * 6s, thus in the worst case clients and servers must sync up their system time
+ * every 6000/360/2~=8 hours.
  *
  */
 //#define MBEDTLS_SSL_TLS1_3_TICKET_AGE_TOLERANCE 6000