diff --git a/ext/standard/dns.c b/ext/standard/dns.c
index d26bdb6937f..813cd60e2cc 100644
--- a/ext/standard/dns.c
+++ b/ext/standard/dns.c
@@ -278,7 +278,8 @@ static char *php_gethostbyname(char *name)
 #define PHP_DNS_ALL    (PHP_DNS_A|PHP_DNS_NS|PHP_DNS_CNAME|PHP_DNS_SOA|PHP_DNS_PTR|PHP_DNS_HINFO|PHP_DNS_MX|PHP_DNS_TXT|PHP_DNS_A6|PHP_DNS_SRV|PHP_DNS_NAPTR|PHP_DNS_AAAA)
 #endif /* HAVE_DNS_FUNCS || defined(PHP_WIN32) */
 
-#if !defined(PHP_WIN32) || (HAVE_RES_SEARCH && !(defined(__BEOS__) || defined(NETWARE)))
+/* Note: These functions are defined in ext/standard/dns_win32.c for Windows! */
+#if !defined(PHP_WIN32) && (HAVE_RES_SEARCH && !(defined(__BEOS__) || defined(NETWARE)))
 
 /* {{{ proto bool dns_check_record(string host [, string type]) U
    Check DNS records corresponding to a given Internet host name or IP address */
@@ -916,7 +917,7 @@ PHP_FUNCTION(dns_get_mx)
 }
 /* }}} */
 #endif /* HAVE_DN_SKIPNAME && HAVE_DN_EXPAND */
-#endif /* defined(PHP_WIN32) || (HAVE_RES_SEARCH && !(defined(__BEOS__) || defined(NETWARE))) */
+#endif /* !defined(PHP_WIN32) && (HAVE_RES_SEARCH && !(defined(__BEOS__) || defined(NETWARE))) */
 
 #if HAVE_DNS_FUNCS || defined(PHP_WIN32)
 PHP_MINIT_FUNCTION(dns) {