diff --git a/proxy/http/HttpSM.h b/proxy/http/HttpSM.h
index 34a5b0f85ee..f328436ac1c 100644
--- a/proxy/http/HttpSM.h
+++ b/proxy/http/HttpSM.h
@@ -523,7 +523,6 @@ class HttpSM : public Continuation, public PluginUserArgs<TS_USER_ARGS_TXN>
   int write_header_into_buffer(HTTPHdr *h, MIOBuffer *b);
   int write_response_header_into_buffer(HTTPHdr *h, MIOBuffer *b);
   void setup_blind_tunnel_port();
-  void setup_client_header_nca();
   void setup_client_read_request_header();
   void setup_push_read_response_header();
   void setup_server_read_response_header();