diff --git a/lib/version.c b/lib/version.c
index 80abba4ea76cd947e806d3b9f7d8dc7f7c05b990..eaf20c0cd43995f8695225b05489e6c7bebfe3f5 100644
--- a/lib/version.c
+++ b/lib/version.c
@@ -204,6 +204,7 @@ static curl_version_info_data version_info = {
   NULL, /* zlib_version */
   protocols,
   NULL, /* c-ares version */
+  0,    /* c-ares version numerical */
 };
 
 curl_version_info_data *curl_version_info(CURLversion stamp)