diff --git a/stats/opentelemetry/client_tracing.go b/stats/opentelemetry/client_tracing.go
index c4c54685e0a9..527f9a07b56c 100644
--- a/stats/opentelemetry/client_tracing.go
+++ b/stats/opentelemetry/client_tracing.go
@@ -1,3 +1,19 @@
+/*
+ * Copyright 2024 gRPC authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
 package opentelemetry
 
 import (
diff --git a/stats/opentelemetry/server_tracing.go b/stats/opentelemetry/server_tracing.go
index e979c3176959..25ac03a2d180 100644
--- a/stats/opentelemetry/server_tracing.go
+++ b/stats/opentelemetry/server_tracing.go
@@ -1,3 +1,19 @@
+/*
+ * Copyright 2024 gRPC authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
 package opentelemetry
 
 import (