diff --git a/bash_completion b/bash_completion
index 64ca04c4c81..8bfa992da6c 100644
--- a/bash_completion
+++ b/bash_completion
@@ -19,6 +19,8 @@
 #   along with this program; if not, write to the Free Software Foundation,
 #   Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 #
+#   SPDX-License-Identifier: GPL-2.0-or-later
+#
 #   The latest version of this software can be obtained here:
 #
 #   https://github.com/scop/bash-completion