diff --git a/lang/tz_en.ts b/lang/tz_en.ts
index ba9b5a350..cbd037f32 100644
--- a/lang/tz_en.ts
+++ b/lang/tz_en.ts
@@ -1,4 +1,7 @@
 <?xml version="1.0" encoding="utf-8"?>
+<!-- SPDX-FileCopyrightText: no
+     SPDX-License-Identifier: CC0-1.0
+-->
 <!DOCTYPE TS>
 <TS version="2.1" language="en_US">
 <context>
diff --git a/lang/tz_nl.ts b/lang/tz_nl.ts
index e1eb8d1e5..ed501dd67 100644
--- a/lang/tz_nl.ts
+++ b/lang/tz_nl.ts
@@ -1,4 +1,7 @@
 <?xml version="1.0" encoding="utf-8"?>
+<!-- SPDX-FileCopyrightText: no
+     SPDX-License-Identifier: CC0-1.0
+-->
 <!DOCTYPE TS>
 <TS version="2.1" language="nl">
 <context>
diff --git a/lang/tz_sv.ts b/lang/tz_sv.ts
index 98d9b83c3..c871dbac5 100644
--- a/lang/tz_sv.ts
+++ b/lang/tz_sv.ts
@@ -1,4 +1,8 @@
-<?xml version="1.0" ?><!DOCTYPE TS><TS version="2.1" language="en_US">
+<?xml version="1.0" ?>
+<!-- SPDX-FileCopyrightText: no
+     SPDX-License-Identifier: CC0-1.0
+-->
+<!DOCTYPE TS><TS version="2.1" language="en_US">
 <context>
     <name>QObject</name>
     <message>
diff --git a/lang/tz_uk.ts b/lang/tz_uk.ts
index 6059079ca..ced3e5b80 100644
--- a/lang/tz_uk.ts
+++ b/lang/tz_uk.ts
@@ -1,4 +1,7 @@
 <?xml version="1.0" encoding="utf-8"?>
+<!-- SPDX-FileCopyrightText: no
+     SPDX-License-Identifier: CC0-1.0
+-->
 <!DOCTYPE TS>
 <TS version="2.1" language="uk">
 <context>
diff --git a/src/libcalamares/locale/CountryData_p.cpp b/src/libcalamares/locale/CountryData_p.cpp
index 722ee2ba9..61b9b05a7 100644
--- a/src/libcalamares/locale/CountryData_p.cpp
+++ b/src/libcalamares/locale/CountryData_p.cpp
@@ -4,7 +4,7 @@
 *
 * SPDX-FileCopyrightText: 1991-2019 Unicode, Inc.
 * SPDX-FileCopyrightText: 2019 Adriaan de Groot <groot@kde.org>
-* SPDX-License-Identifier: CC0
+* SPDX-License-Identifier: CC0-1.0
 *
 * This file is derived from CLDR data from Unicode, Inc. Applicable terms
 * are listed at http://unicode.org/copyright.html , of which the most
diff --git a/src/libcalamares/locale/ZoneData_p.cxxtr b/src/libcalamares/locale/ZoneData_p.cxxtr
index 7bbcdf7f6..c59c60dbb 100644
--- a/src/libcalamares/locale/ZoneData_p.cxxtr
+++ b/src/libcalamares/locale/ZoneData_p.cxxtr
@@ -2,7 +2,7 @@
 *
 * SPDX-FileCopyrightText: 2009 Arthur David Olson
 * SPDX-FileCopyrightText: 2019 Adriaan de Groot <groot@kde.org>
-* SPDX-License-Identifier: CC0
+* SPDX-License-Identifier: CC0-1.0
 *
 * This file is derived from zone.tab, which has its own copyright statement:
 *
diff --git a/src/libcalamares/locale/zone-extractor.py b/src/libcalamares/locale/zone-extractor.py
index 3f08df9d8..aa8063522 100644
--- a/src/libcalamares/locale/zone-extractor.py
+++ b/src/libcalamares/locale/zone-extractor.py
@@ -48,7 +48,7 @@ cpp_header_comment = """/*   GENERATED FILE DO NOT EDIT
 *
 * SPDX-FileCopyrightText: 2009 Arthur David Olson
 * SPDX-FileCopyrightText: 2019 Adriaan de Groot <groot@kde.org>
-* SPDX-License-Identifier: CC0
+* SPDX-License-Identifier: CC0-1.0
 *
 * This file is derived from zone.tab, which has its own copyright statement:
 *