diff --git a/rust/backend/daemon/src/symbols/actors.rs b/rust/backend/daemon/src/symbols/actors.rs
index 78370cff..25c56f40 100644
--- a/rust/backend/daemon/src/symbols/actors.rs
+++ b/rust/backend/daemon/src/symbols/actors.rs
@@ -1,3 +1,7 @@
+// SPDX-FileCopyrightText: 2024 Felix Hilgers <felix.hilgers@fau.de>
+//
+// SPDX-License-Identifier: MIT
+
 use std::{io, marker::PhantomData, sync::Arc};
 
 use tantivy::{collector::TopDocs, doc, query::QueryParser, schema::{Field, Value}, Index, IndexWriter, TantivyDocument};
diff --git a/rust/backend/daemon/src/symbols/index.rs b/rust/backend/daemon/src/symbols/index.rs
index f27d145a..0ba40ded 100644
--- a/rust/backend/daemon/src/symbols/index.rs
+++ b/rust/backend/daemon/src/symbols/index.rs
@@ -1,4 +1,3 @@
-
 // SPDX-FileCopyrightText: 2024 Benedikt Zinn <benedikt.wh.zinn@gmail.com>
 // SPDX-FileCopyrightText: 2024 Felix Hilgers <felix.hilgers@fau.de>
 // SPDX-FileCopyrightText: 2024 Robin Seidl <robin.seidl@fau.de>
diff --git a/rust/backend/daemon/src/symbols/mod.rs b/rust/backend/daemon/src/symbols/mod.rs
index daac22c2..248fb552 100644
--- a/rust/backend/daemon/src/symbols/mod.rs
+++ b/rust/backend/daemon/src/symbols/mod.rs
@@ -1,4 +1,5 @@
 // SPDX-FileCopyrightText: 2024 Benedikt Zinn <benedikt.wh.zinn@gmail.com>
+// SPDX-FileCopyrightText: 2024 Felix Hilgers <felix.hilgers@fau.de>
 // SPDX-FileCopyrightText: 2024 Robin Seidl <robin.seidl@fau.de>
 //
 // SPDX-License-Identifier: MIT
diff --git a/rust/backend/daemon/src/symbols/symbolizer.rs b/rust/backend/daemon/src/symbols/symbolizer.rs
index e77e779b..ba670e86 100644
--- a/rust/backend/daemon/src/symbols/symbolizer.rs
+++ b/rust/backend/daemon/src/symbols/symbolizer.rs
@@ -1,3 +1,7 @@
+// SPDX-FileCopyrightText: 2024 Felix Hilgers <felix.hilgers@fau.de>
+//
+// SPDX-License-Identifier: MIT
+
 use std::{io, path::Path};
 
 use fmmap::tokio::{AsyncMmapFile, AsyncMmapFileExt};
diff --git a/rust/backend/daemon/src/symbols/walking.rs b/rust/backend/daemon/src/symbols/walking.rs
index 81d8c29e..e4b5171e 100644
--- a/rust/backend/daemon/src/symbols/walking.rs
+++ b/rust/backend/daemon/src/symbols/walking.rs
@@ -1,3 +1,7 @@
+// SPDX-FileCopyrightText: 2024 Felix Hilgers <felix.hilgers@fau.de>
+//
+// SPDX-License-Identifier: MIT
+
 use std::{ffi::OsStr, path::{Path, PathBuf}};
 
 use async_walkdir::{DirEntry, Error, WalkDir};