diff --git a/internal/pkg/openflow/meter.go b/internal/pkg/openflow/meter.go
index e4b8566..effda76 100644
--- a/internal/pkg/openflow/meter.go
+++ b/internal/pkg/openflow/meter.go
@@ -1,17 +1,17 @@
 /*
 Copyright 2020 the original author or 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
+	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
+	     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.
+	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 openflow