diff --git a/README.debrand b/README.debrand
new file mode 100644
index 0000000..01c46d2
--- /dev/null
+++ b/README.debrand
@@ -0,0 +1,2 @@
+Warning: This package was configured for automatic debranding, but the changes
+failed to apply.
diff --git a/SPECS/thunderbird.spec b/SPECS/thunderbird.spec
index cf8c397..a30ee04 100644
--- a/SPECS/thunderbird.spec
+++ b/SPECS/thunderbird.spec
@@ -1520,6 +1520,9 @@ gtk-update-icon-cache %{_datadir}/icons/hicolor &>/dev/null || :
 #===============================================================================
 
 %changelog
+* Mon Aug 16 2021 CentOS Sources <bugs@centos.org> - 78.13.0-1.el8.centos
+- Apply debranding changes
+
 * Wed Aug 04 2021 Eike Rathke <erack@redhat.com> - 78.13.0-1
 - Update to 78.13.0 build1