diff --git a/docs/examples/crawler.c b/docs/examples/crawler.c
index 33312cace4..aadfe2fb06 100644
--- a/docs/examples/crawler.c
+++ b/docs/examples/crawler.c
@@ -95,6 +95,7 @@ CURL *make_handle(char *url)
   curl_easy_setopt(handle, CURLOPT_ACCEPT_ENCODING, "");
   curl_easy_setopt(handle, CURLOPT_TIMEOUT, 5L);
   curl_easy_setopt(handle, CURLOPT_FOLLOWLOCATION, 1L);
+  curl_easy_setopt(handle, CURLOPT_AUTOREFERER, 1L);
   curl_easy_setopt(handle, CURLOPT_MAXREDIRS, 10L);
   curl_easy_setopt(handle, CURLOPT_CONNECTTIMEOUT, 2L);
   curl_easy_setopt(handle, CURLOPT_COOKIEFILE, "");