diff --git a/LICENSE b/LICENSE
index 261eeb9e9..d9a10c0d8 100644
--- a/LICENSE
+++ b/LICENSE
@@ -174,28 +174,3 @@
       of your accepting any such warranty or additional liability.
 
    END OF TERMS AND CONDITIONS
-
-   APPENDIX: How to apply the Apache License to your work.
-
-      To apply the Apache License to your work, attach the following
-      boilerplate notice, with the fields enclosed by brackets "[]"
-      replaced with your own identifying information. (Don't include
-      the brackets!)  The text should be enclosed in the appropriate
-      comment syntax for the file format. We also recommend that a
-      file or class name and description of purpose be included on the
-      same "printed page" as the copyright notice for easier
-      identification within third-party archives.
-
-   Copyright [yyyy] [name of copyright owner]
-
-   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.
diff --git a/src/proguard/classfile/kotlin/visitor/KotlinClassToAnonymousObjectOriginClassVisitor.java b/src/proguard/classfile/kotlin/visitor/KotlinClassToAnonymousObjectOriginClassVisitor.java
index 073e36ef0..3578808cf 100644
--- a/src/proguard/classfile/kotlin/visitor/KotlinClassToAnonymousObjectOriginClassVisitor.java
+++ b/src/proguard/classfile/kotlin/visitor/KotlinClassToAnonymousObjectOriginClassVisitor.java
@@ -1,3 +1,20 @@
+/*
+ * ProGuard Core -- library to process Java bytecode.
+ *
+ * Copyright (c) 2002-2020 Guardsquare NV
+ *
+ * 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 proguard.classfile.kotlin.visitor;
 
 import proguard.classfile.ClassPool;
diff --git a/src/proguard/classfile/kotlin/visitor/KotlinClassToInlineOriginFunctionVisitor.java b/src/proguard/classfile/kotlin/visitor/KotlinClassToInlineOriginFunctionVisitor.java
index a238752f0..dcf8594fc 100644
--- a/src/proguard/classfile/kotlin/visitor/KotlinClassToInlineOriginFunctionVisitor.java
+++ b/src/proguard/classfile/kotlin/visitor/KotlinClassToInlineOriginFunctionVisitor.java
@@ -1,3 +1,20 @@
+/*
+ * ProGuard Core -- library to process Java bytecode.
+ *
+ * Copyright (c) 2002-2020 Guardsquare NV
+ *
+ * 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 proguard.classfile.kotlin.visitor;
 
 import proguard.classfile.Clazz;
diff --git a/src/proguard/classfile/kotlin/visitor/MultiKotlinTypeParameterVisitor.java b/src/proguard/classfile/kotlin/visitor/MultiKotlinTypeParameterVisitor.java
index abc79c0b8..099e40c86 100644
--- a/src/proguard/classfile/kotlin/visitor/MultiKotlinTypeParameterVisitor.java
+++ b/src/proguard/classfile/kotlin/visitor/MultiKotlinTypeParameterVisitor.java
@@ -1,8 +1,19 @@
 /*
- * ProGuard -- shrinking, optimization, obfuscation, and preverification
- *             of Java bytecode.
+ * ProGuard Core -- library to process Java bytecode.
  *
  * Copyright (c) 2002-2020 Guardsquare NV
+ *
+ * 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 proguard.classfile.kotlin.visitor;
diff --git a/src/proguard/classfile/kotlin/visitor/filter/KotlinAnnotationFilter.java b/src/proguard/classfile/kotlin/visitor/filter/KotlinAnnotationFilter.java
index 8f8929de3..9f157dea0 100644
--- a/src/proguard/classfile/kotlin/visitor/filter/KotlinAnnotationFilter.java
+++ b/src/proguard/classfile/kotlin/visitor/filter/KotlinAnnotationFilter.java
@@ -1,8 +1,19 @@
 /*
- * ProGuard -- shrinking, optimization, obfuscation, and preverification
- *             of Java bytecode.
+ * ProGuard Core -- library to process Java bytecode.
  *
  * Copyright (c) 2002-2020 Guardsquare NV
+ *
+ * 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 proguard.classfile.kotlin.visitor.filter;
diff --git a/src/proguard/classfile/kotlin/visitor/filter/KotlinMetadataFilter.java b/src/proguard/classfile/kotlin/visitor/filter/KotlinMetadataFilter.java
index 86a257f49..23dec6ba3 100644
--- a/src/proguard/classfile/kotlin/visitor/filter/KotlinMetadataFilter.java
+++ b/src/proguard/classfile/kotlin/visitor/filter/KotlinMetadataFilter.java
@@ -1,8 +1,19 @@
 /*
- * ProGuard -- shrinking, optimization, obfuscation, and preverification
- *             of Java bytecode.
+ * ProGuard Core -- library to process Java bytecode.
  *
  * Copyright (c) 2002-2020 Guardsquare NV
+ *
+ * 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 proguard.classfile.kotlin.visitor.filter;
diff --git a/src/proguard/classfile/kotlin/visitor/filter/KotlinMultiFilePartKindFilter.java b/src/proguard/classfile/kotlin/visitor/filter/KotlinMultiFilePartKindFilter.java
index 14b75edc7..7d328e0af 100644
--- a/src/proguard/classfile/kotlin/visitor/filter/KotlinMultiFilePartKindFilter.java
+++ b/src/proguard/classfile/kotlin/visitor/filter/KotlinMultiFilePartKindFilter.java
@@ -1,8 +1,19 @@
 /*
- * ProGuard -- shrinking, optimization, obfuscation, and preverification
- *             of Java bytecode.
+ * ProGuard Core -- library to process Java bytecode.
  *
  * Copyright (c) 2002-2020 Guardsquare NV
+ *
+ * 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 proguard.classfile.kotlin.visitor.filter;
 
diff --git a/src/proguard/classfile/kotlin/visitor/filter/KotlinTypeFilter.java b/src/proguard/classfile/kotlin/visitor/filter/KotlinTypeFilter.java
index 62d5148b9..ec14c6a3d 100644
--- a/src/proguard/classfile/kotlin/visitor/filter/KotlinTypeFilter.java
+++ b/src/proguard/classfile/kotlin/visitor/filter/KotlinTypeFilter.java
@@ -1,8 +1,19 @@
 /*
- * ProGuard -- shrinking, optimization, obfuscation, and preverification
- *             of Java bytecode.
+ * ProGuard Core -- library to process Java bytecode.
  *
  * Copyright (c) 2002-2020 Guardsquare NV
+ *
+ * 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 proguard.classfile.kotlin.visitor.filter;