diff --git a/plugin/protocol/http2/src/http2_stream.cpp b/plugin/protocol/http2/src/http2_stream.cpp
index 8e99af4..08d85cd 100644
--- a/plugin/protocol/http2/src/http2_stream.cpp
+++ b/plugin/protocol/http2/src/http2_stream.cpp
@@ -760,6 +760,7 @@ nghttp2_frame_submit_built_resp(struct tfe_h2_stream *h2_stream_info,
 	if (rv != 0){
 		return ACTION_FORWARD_DATA;
 	}
+	delete_nv_packet_data(h2_header);
 
 	return ACTION_DROP_DATA;
 }
@@ -804,6 +805,7 @@ nghttp2_frame_submit_built_req(struct tfe_h2_stream *h2_stream_info,
 					  nghttp2_strerror(stream_id));
         return ACTION_FORWARD_DATA;
     }
+	delete_nv_packet_data(h2_header);
 
 	return ACTION_DROP_DATA;
 }
@@ -1193,6 +1195,7 @@ nghttp2_submit_header_by_not_modify(struct tfe_h2_stream *h2_stream_info,
         printf("Fatal headers error: %s\n", nghttp2_strerror(stream_id));
 		stream_action = ACTION_FORWARD_DATA;
     }
+	delete_nv_packet_data(&headers);
 
 	if (stream_action == ACTION_DROP_DATA){
 		xret = nghttp2_session_send(h2_stream_info->as_server);
@@ -1382,6 +1385,7 @@ nghttp2_server_frame_submit_push_promise(struct tfe_h2_stream *h2_stream_info,
     }
 	upstream_create_req(h2_stream_info, h2_stream_info->as_server, peer_h2_stream, stream_id);
 	/*clean header message **/
+	delete_nv_packet_data(headers);
 	stream_action = ACTION_DROP_DATA;
 finish:
 	return stream_action;
@@ -1590,6 +1594,7 @@ nghttp2_server_frame_submit_header(struct tfe_h2_stream *h2_stream_info,
     if (xret < 0){
         printf("Fatal headers error: %s\n", nghttp2_strerror(xret));
     }
+	delete_nv_packet_data(headers);
 
 	return stream_action;
 }
@@ -1773,6 +1778,7 @@ nghttp2_client_frame_submit_header(struct tfe_h2_stream *h2_stream_info,
     }
 	stream_action = ACTION_DROP_DATA;
 finish:
+	delete_nv_packet_data(headers);
 	return stream_action;
 }