diff --git a/Applications/Internet/Cyberia.app/Cyberia.HC b/Applications/Internet/Cyberia.app/Cyberia.HC
index 1bdd5cf..be073fa 100644
--- a/Applications/Internet/Cyberia.app/Cyberia.HC
+++ b/Applications/Internet/Cyberia.app/Cyberia.HC
@@ -694,6 +694,7 @@ U0 @cyberia_navigate(Bool refresh = FALSE)
             headers->set("Cookie", cookie_buf, JSON_STRING);
         }
         if (renderer->form_data_str) {
+            headers->set("Content-Type", "application/x-www-form-urlencoded", JSON_STRING);
             resp = Http.Post(renderer->current_url, buffer, renderer->form_data_str, headers);
             // FIXME: form_data_str should be freed
             renderer->form_data_str = NULL;