Added more const.

1 files changed, 2 insertions, 2 deletions

diff --git a/xs_curl.h b/xs_curl.h
index 2628d91..215db7f 100644
--- a/xs_curl.h
+++ b/xs_curl.h
@@ -93,8 +93,8 @@ xs_dict *xs_http_request(const char *method, const char *url,
     xs_dict *response;
     CURL *curl;
     struct curl_slist *list = NULL;
-    xs_str *k;
-    xs_val *v;
+    const xs_str *k;
+    const xs_val *v;
     long lstatus = 0;
     struct _payload_data pd;