diff --git a/library/version_features.c b/library/version_features.c
index 02e14fb..08bdfe2 100644
--- a/library/version_features.c
+++ b/library/version_features.c
@@ -363,6 +363,9 @@
 #if defined(POLARSSL_X509_ALLOW_UNSUPPORTED_CRITICAL_EXTENSION)
     "POLARSSL_X509_ALLOW_UNSUPPORTED_CRITICAL_EXTENSION",
 #endif /* POLARSSL_X509_ALLOW_UNSUPPORTED_CRITICAL_EXTENSION */
+#if defined(POLARSSL_X509_ALLOW_RELAXED_DATE)
+    "POLARSSL_X509_ALLOW_RELAXED_DATE",
+#endif /* POLARSSL_X509_ALLOW_RELAXED_DATE */
 #if defined(POLARSSL_X509_CHECK_KEY_USAGE)
     "POLARSSL_X509_CHECK_KEY_USAGE",
 #endif /* POLARSSL_X509_CHECK_KEY_USAGE */