diff --git a/handler/meter/meter.go b/handler/meter/meter.go
index 16941c6..b91f777 100644
--- a/handler/meter/meter.go
+++ b/handler/meter/meter.go
@@ -86,7 +86,7 @@ func (h *Handler) Metrics(ctx context.Context, req *codecpb.Frame, rsp *codecpb.
 		gz := gzipPool.Get().(*gzip.Writer)
 		defer gzipPool.Put(gz)
 
-		gz.Reset(buf)
+		gz.Reset(w)
 		defer gz.Close()
 
 		w = gz