diff --git a/src/catkin_pkg/package.py b/src/catkin_pkg/package.py
index 1a519da7..0a930f45 100644
--- a/src/catkin_pkg/package.py
+++ b/src/catkin_pkg/package.py
@@ -336,6 +336,7 @@ def map_license_to_more_common_format(lic):
             These aren't SPDX Identifiers, but lets unify them to use at least similar format.
             """
             return {
+                "Check-author's-website": 'Check-authors-website',
                 'proprietary': 'Proprietary',
                 'Public Domain': 'PD',
                 'Public domain': 'PD',