diff --git a/scripts/config.pl b/scripts/config.pl
index d07b130a7..76ca4709c 100755
--- a/scripts/config.pl
+++ b/scripts/config.pl
@@ -92,6 +92,7 @@ MBEDTLS_X509_ALLOW_EXTENSIONS_NON_V3
 MBEDTLS_X509_ALLOW_UNSUPPORTED_CRITICAL_EXTENSION
 MBEDTLS_ZLIB_SUPPORT
 MBEDTLS_PKCS11_C
+MBEDTLS_NO_UDBL_DIVISION
 _ALT\s*$
 );