diff --git a/src/command/run.rs b/src/command/run.rs
index 757a2cd..81b1e27 100644
--- a/src/command/run.rs
+++ b/src/command/run.rs
@@ -1,3 +1,18 @@
+/**
+ * Copyright 2020 Garrit Franke
+ *
+ * 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
+ *
+ *      https://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.
+ */
 use crate::command::build;
 use std::io::Write;
 use std::path::PathBuf;
diff --git a/src/generator/c.rs b/src/generator/c.rs
index 02da8ea..ff799f2 100644
--- a/src/generator/c.rs
+++ b/src/generator/c.rs
@@ -1,5 +1,3 @@
-use crate::generator::Generator;
-use crate::parser::node_type::*;
 /**
  * Copyright 2020 Garrit Franke
  *
@@ -15,6 +13,8 @@ use crate::parser::node_type::*;
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+use crate::generator::Generator;
+use crate::parser::node_type::*;
 use crate::util::Either;
 
 pub struct CGenerator;
diff --git a/src/generator/llvm.rs b/src/generator/llvm.rs
index 210e6a0..8083225 100644
--- a/src/generator/llvm.rs
+++ b/src/generator/llvm.rs
@@ -1,3 +1,18 @@
+/**
+ * Copyright 2020 Garrit Franke
+ *
+ * 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
+ *
+ *      https://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.
+ */
 use crate::generator::Generator;
 use crate::parser::node_type::*;
 use inkwell::context::Context;
diff --git a/src/parser/infer.rs b/src/parser/infer.rs
index 819e167..294709c 100644
--- a/src/parser/infer.rs
+++ b/src/parser/infer.rs
@@ -1,3 +1,18 @@
+/**
+ * Copyright 2021 Garrit Franke
+ *
+ * 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
+ *
+ *      https://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.
+ */
 use super::node_type::*;
 
 /// Try to infer types of variables
diff --git a/src/parser/mod.rs b/src/parser/mod.rs
index 58fb36d..6e70a39 100644
--- a/src/parser/mod.rs
+++ b/src/parser/mod.rs
@@ -1,4 +1,3 @@
-mod infer;
 /**
  * Copyright 2020 Garrit Franke
  *
@@ -14,6 +13,7 @@ mod infer;
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+mod infer;
 pub mod node_type;
 // TODO: Resolve this lint by renaming the module
 #[allow(clippy::module_inception)]
diff --git a/src/parser/tests.rs b/src/parser/tests.rs
index 30fb9e7..614639c 100644
--- a/src/parser/tests.rs
+++ b/src/parser/tests.rs
@@ -1,5 +1,3 @@
-use crate::lexer::*;
-use crate::parser::node_type::*;
 /**
  * Copyright 2020 Garrit Franke
  *
@@ -15,6 +13,8 @@ use crate::parser::node_type::*;
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+use crate::lexer::*;
+use crate::parser::node_type::*;
 use crate::parser::parse;
 
 #[test]