diff --git a/include/mbedtls/hmac_drbg.h b/include/mbedtls/hmac_drbg.h
index fa33611..79132d4 100644
--- a/include/mbedtls/hmac_drbg.h
+++ b/include/mbedtls/hmac_drbg.h
@@ -41,10 +41,14 @@
 /*
  * Error codes
  */
-#define MBEDTLS_ERR_HMAC_DRBG_REQUEST_TOO_BIG              -0x0003  /**< Too many random requested in single call. */
-#define MBEDTLS_ERR_HMAC_DRBG_INPUT_TOO_BIG                -0x0005  /**< Input too large (Entropy + additional). */
-#define MBEDTLS_ERR_HMAC_DRBG_FILE_IO_ERROR                -0x0007  /**< Read/write error in file. */
-#define MBEDTLS_ERR_HMAC_DRBG_ENTROPY_SOURCE_FAILED        -0x0009  /**< The entropy source failed. */
+/** Too many random requested in single call. */
+#define MBEDTLS_ERR_HMAC_DRBG_REQUEST_TOO_BIG              -0x0003
+/** Input too large (Entropy + additional). */
+#define MBEDTLS_ERR_HMAC_DRBG_INPUT_TOO_BIG                -0x0005
+/** Read/write error in file. */
+#define MBEDTLS_ERR_HMAC_DRBG_FILE_IO_ERROR                -0x0007
+/** The entropy source failed. */
+#define MBEDTLS_ERR_HMAC_DRBG_ENTROPY_SOURCE_FAILED        -0x0009
 
 /**
  * \name SECTION: Module settings