diff --git src/core/ngx_resolver.c src/core/ngx_resolver.c --- src/core/ngx_resolver.c +++ src/core/ngx_resolver.c @@ -4008,15 +4008,15 @@ done: n = *src++; } else { + if (dst != name->data) { + *dst++ = '.'; + } + ngx_strlow(dst, src, n); dst += n; src += n; n = *src++; - - if (n != 0) { - *dst++ = '.'; - } } if (n == 0) {