diff --git a/addons/project/__manifest__.py b/addons/project/__manifest__.py
index ea9728d7c6f..bceb38c63f5 100644
--- a/addons/project/__manifest__.py
+++ b/addons/project/__manifest__.py
@@ -138,6 +138,7 @@
             'web/static/src/legacy/scss/kanban_examples_dialog.scss',
             'web/static/src/legacy/scss/kanban_column_progressbar.scss',
             'web/static/src/legacy/scss/kanban_view.scss',
+            'web/static/src/legacy/scss/progress_bar.scss',
 
             'base/static/src/scss/res_partner.scss',