diff --git a/library/version_features.c b/library/version_features.c
index b36893e33..c6001a40d 100644
--- a/library/version_features.c
+++ b/library/version_features.c
@@ -447,6 +447,9 @@ static const char *features[] = {
 #if defined(MBEDTLS_SSL_ALL_ALERT_MESSAGES)
     "MBEDTLS_SSL_ALL_ALERT_MESSAGES",
 #endif /* MBEDTLS_SSL_ALL_ALERT_MESSAGES */
+#if defined(MBEDTLS_SSL_CID)
+    "MBEDTLS_SSL_CID",
+#endif /* MBEDTLS_SSL_CID */
 #if defined(MBEDTLS_SSL_ASYNC_PRIVATE)
     "MBEDTLS_SSL_ASYNC_PRIVATE",
 #endif /* MBEDTLS_SSL_ASYNC_PRIVATE */