diff --git a/processor/schemaprocessor/internal/transformer/attributes_test.go b/processor/schemaprocessor/internal/transformer/attributes_test.go
index 6b8243f1402b..474d2fce9545 100644
--- a/processor/schemaprocessor/internal/transformer/attributes_test.go
+++ b/processor/schemaprocessor/internal/transformer/attributes_test.go
@@ -1,3 +1,6 @@
+// Copyright The OpenTelemetry Authors
+// SPDX-License-Identifier: Apache-2.0
+
 package transformer
 
 import (
diff --git a/processor/schemaprocessor/internal/transformer/conditional_attributes_test.go b/processor/schemaprocessor/internal/transformer/conditional_attributes_test.go
index 793873466ebc..4bd2ccb6c33c 100644
--- a/processor/schemaprocessor/internal/transformer/conditional_attributes_test.go
+++ b/processor/schemaprocessor/internal/transformer/conditional_attributes_test.go
@@ -1,3 +1,6 @@
+// Copyright The OpenTelemetry Authors
+// SPDX-License-Identifier: Apache-2.0
+
 package transformer
 
 import (
diff --git a/processor/schemaprocessor/internal/transformer/multi_conditional_attributes_test.go b/processor/schemaprocessor/internal/transformer/multi_conditional_attributes_test.go
index 7f0b1afaf91e..10bafb87a38a 100644
--- a/processor/schemaprocessor/internal/transformer/multi_conditional_attributes_test.go
+++ b/processor/schemaprocessor/internal/transformer/multi_conditional_attributes_test.go
@@ -1,3 +1,6 @@
+// Copyright The OpenTelemetry Authors
+// SPDX-License-Identifier: Apache-2.0
+
 package transformer
 
 import (
diff --git a/processor/schemaprocessor/internal/transformer/signal_name_test.go b/processor/schemaprocessor/internal/transformer/signal_name_test.go
index dfb1902d8438..ea384b43cab7 100644
--- a/processor/schemaprocessor/internal/transformer/signal_name_test.go
+++ b/processor/schemaprocessor/internal/transformer/signal_name_test.go
@@ -1,3 +1,6 @@
+// Copyright The OpenTelemetry Authors
+// SPDX-License-Identifier: Apache-2.0
+
 package transformer
 
 import (