diff --git a/.idea/copyright/hedgedoc.xml.license b/.idea/copyright/hedgedoc.xml.license
new file mode 100644
index 000000000..078e5a9ac
--- /dev/null
+++ b/.idea/copyright/hedgedoc.xml.license
@@ -0,0 +1,3 @@
+SPDX-FileCopyrightText: 2021 The HedgeDoc developers (see AUTHORS file)
+
+SPDX-License-Identifier: CC0-1.0