diff --git a/library/ssl_tls.c b/library/ssl_tls.c
index 8a09a82..81ec29f 100644
--- a/library/ssl_tls.c
+++ b/library/ssl_tls.c
@@ -1627,7 +1627,7 @@
 }
 #endif /* MBEDTLS_SSL_CID */
 
-/* add_data must have size ( 13 + SSL_CID_LEN_MAX ) Bytes */
+/* add_data must have size ( 13 + MBEDTLS_SSL_CID_LEN_MAX ) Bytes */
 static void ssl_extract_add_data_from_record( unsigned char* add_data,
                                               size_t *add_data_len,
                                               mbedtls_record *rec )
@@ -1673,7 +1673,7 @@
     mbedtls_cipher_mode_t mode;
     int auth_done = 0;
     unsigned char * data;
-    unsigned char add_data[13 + SSL_CID_LEN_MAX ];
+    unsigned char add_data[13 + MBEDTLS_SSL_CID_LEN_MAX ];
     size_t add_data_len;
     size_t post_avail;
 
@@ -2110,7 +2110,7 @@
     size_t padlen = 0, correct = 1;
 #endif
     unsigned char* data;
-    unsigned char add_data[13 + SSL_CID_LEN_MAX ];
+    unsigned char add_data[13 + MBEDTLS_SSL_CID_LEN_MAX ];
     size_t add_data_len;
 
 #if !defined(MBEDTLS_DEBUG_C)