diff --git a/include/mbedtls/entropy_poll.h b/include/mbedtls/entropy_poll.h
index eca3b56..fed6862 100644
--- a/include/mbedtls/entropy_poll.h
+++ b/include/mbedtls/entropy_poll.h
@@ -82,7 +82,7 @@
 /**
  * \brief           Entropy poll callback for a hardware source
  *
- * \warning         This is not provided by mbed TLS!
+ * \warning         This is not provided by Mbed TLS!
  *                  See \c MBEDTLS_ENTROPY_HARDWARE_ALT in config.h.
  *
  * \note            This must accept NULL as its first argument.