diff --git a/library/version_features.c b/library/version_features.c
index 5e9d923..e19e314 100644
--- a/library/version_features.c
+++ b/library/version_features.c
@@ -534,6 +534,9 @@
 #if defined(MBEDTLS_VERSION_FEATURES)
     "MBEDTLS_VERSION_FEATURES",
 #endif /* MBEDTLS_VERSION_FEATURES */
+#if defined(MBEDTLS_X509_ON_DEMAND_PARSING)
+    "MBEDTLS_X509_ON_DEMAND_PARSING",
+#endif /* MBEDTLS_X509_ON_DEMAND_PARSING */
 #if defined(MBEDTLS_X509_ALLOW_EXTENSIONS_NON_V3)
     "MBEDTLS_X509_ALLOW_EXTENSIONS_NON_V3",
 #endif /* MBEDTLS_X509_ALLOW_EXTENSIONS_NON_V3 */