diff --git a/include/mbedtls/hkdf.h b/include/mbedtls/hkdf.h
index 2e6b363..223004b 100644
--- a/include/mbedtls/hkdf.h
+++ b/include/mbedtls/hkdf.h
@@ -37,7 +37,8 @@
  *  \name HKDF Error codes
  *  \{
  */
-#define MBEDTLS_ERR_HKDF_BAD_INPUT_DATA  -0x5F80  /**< Bad input parameters to function. */
+/** Bad input parameters to function. */
+#define MBEDTLS_ERR_HKDF_BAD_INPUT_DATA  -0x5F80
 /* \} name */
 
 #ifdef __cplusplus