diff --git a/http.c b/http.c
index efdab09796..0153fb0b62 100644
--- a/http.c
+++ b/http.c
@@ -405,7 +405,9 @@ static CURL *get_curl_handle(void)
 
 	if (curl_http_proxy) {
 		curl_easy_setopt(result, CURLOPT_PROXY, curl_http_proxy);
+#if LIBCURL_VERSION_NUM >= 0x070a07
 		curl_easy_setopt(result, CURLOPT_PROXYAUTH, CURLAUTH_ANY);
+#endif
 	}
 
 	set_curl_keepalive(result);