diff --git a/include/mbedtls/ssl.h b/include/mbedtls/ssl.h
index fa382253ca..9a02a6a8c2 100644
--- a/include/mbedtls/ssl.h
+++ b/include/mbedtls/ssl.h
@@ -1405,10 +1405,6 @@ struct mbedtls_ssl_config {
     void(*MBEDTLS_PRIVATE(f_dbg))(void *, int, const char *, int, const char *);
     void *MBEDTLS_PRIVATE(p_dbg);                    /*!< context for the debug function     */
 
-    /** Callback for getting (pseudo-)random numbers                        */
-    int(*MBEDTLS_PRIVATE(f_rng))(void *, unsigned char *, size_t);
-    void *MBEDTLS_PRIVATE(p_rng);                    /*!< context for the RNG function       */
-
     /** Callback to retrieve a session from the cache                       */
     mbedtls_ssl_cache_get_t *MBEDTLS_PRIVATE(f_get_cache);
     /** Callback to store a session into the cache                          */