diff --git a/aggregate/pipeline_predicates.go b/aggregate/pipeline_predicates.go
index 7dafc8a2..e2285405 100644
--- a/aggregate/pipeline_predicates.go
+++ b/aggregate/pipeline_predicates.go
@@ -1,3 +1,8 @@
+// Unless explicitly stated otherwise all files in this repository are licensed
+// under the MIT License.
+// This product includes software developed at Guance Cloud (https://www.guance.com/).
+// Copyright 2021-present Guance, Inc.
+
 package aggregate
 
 import (
diff --git a/aggregate/spill.go b/aggregate/spill.go
index 59abf2d2..2e7ee664 100644
--- a/aggregate/spill.go
+++ b/aggregate/spill.go
@@ -1,3 +1,8 @@
+// Unless explicitly stated otherwise all files in this repository are licensed
+// under the MIT License.
+// This product includes software developed at Guance Cloud (https://www.guance.com/).
+// Copyright 2021-present Guance, Inc.
+
 package aggregate
 
 import (
diff --git a/aggregate/zstd.go b/aggregate/zstd.go
index 3cf4d818..21129064 100644
--- a/aggregate/zstd.go
+++ b/aggregate/zstd.go
@@ -1,3 +1,8 @@
+// Unless explicitly stated otherwise all files in this repository are licensed
+// under the MIT License.
+// This product includes software developed at Guance Cloud (https://www.guance.com/).
+// Copyright 2021-present Guance, Inc.
+
 package aggregate
 
 import (