diff --git a/PyYAML.spec b/PyYAML.spec
index b0e9800..ead210f 100644
--- a/PyYAML.spec
+++ b/PyYAML.spec
@@ -3,6 +3,7 @@ Version:        6.0.1
 Release:        %autorelease
 Summary:        YAML parser and emitter for Python
 
+# SPDX
 License:        MIT
 URL:            https://github.com/yaml/pyyaml
 Source:         https://github.com/yaml/pyyaml/archive/%{version}.tar.gz