diff --git a/src/http_server.cpp b/src/http_server.cpp
index f58fdb63..ef7b0001 100644
--- a/src/http_server.cpp
+++ b/src/http_server.cpp
@@ -351,6 +351,9 @@ int HttpServer::catch_all_handler(h2o_handler_t *_h2o_handler, h2o_req_t *req) {
     std::map<std::string, std::string> query_map;
     StringUtils::parse_query_string(query_str, query_map);
 
+    // cache ttl can be applied only from an embedded key
+    query_map.erase("cache_ttl");
+
     // Extract auth key from header. If that does not exist, look for a GET parameter.
     std::string api_auth_key_sent = "";