diff --git a/auto/lib/md5/conf b/auto/lib/md5/conf
index 2a8f8ad92..9afe5b8de 100644
--- a/auto/lib/md5/conf
+++ b/auto/lib/md5/conf
@@ -88,6 +88,7 @@ else
 
             if [ $ngx_found = yes ]; then
                 have=NGX_HAVE_OPENSSL_MD5_H . auto/have
+                have=NGX_HAVE_MD5 . auto/have
             fi
         fi