diff --git a/eduserver/api/types.go b/eduserver/api/types.go
index 6e2209bc4..a207580f9 100644
--- a/eduserver/api/types.go
+++ b/eduserver/api/types.go
@@ -1,11 +1,23 @@
+// Copyright 2021 The Matrix.org Foundation C.I.C.
+//
+// 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 api
 
 import "github.com/matrix-org/gomatrixserverlib"
 
 const (
 	MSigningKeyUpdate = "m.signing_key_update"
-	MTyping           = "m.typing"
-	MReceipt          = "m.receipt"
 )
 
 type TypingEvent struct {
diff --git a/keyserver/consumers/cross_signing.go b/keyserver/consumers/cross_signing.go
index 6e1488af3..ccf96a13c 100644
--- a/keyserver/consumers/cross_signing.go
+++ b/keyserver/consumers/cross_signing.go
@@ -1,3 +1,17 @@
+// Copyright 2021 The Matrix.org Foundation C.I.C.
+//
+// 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 consumers
 
 import (