diff --git a/addons/hr_timesheet_sheet/hr_timesheet_sheet_view.xml b/addons/hr_timesheet_sheet/hr_timesheet_sheet_view.xml
index dad78eb0f7f..42983f161ce 100644
--- a/addons/hr_timesheet_sheet/hr_timesheet_sheet_view.xml
+++ b/addons/hr_timesheet_sheet/hr_timesheet_sheet_view.xml
@@ -166,8 +166,8 @@
                     <group col="4" colspan="2">
                         <button name="button_confirm" states="draft" string="Confirm" type="object"/>
                         <button name="action_set_to_draft" states="done" string="Set to Draft" type="object"/>
-                        <button name="cancel" states="confirm" string="Refuse"/>
-                        <button name="done" states="confirm" string="Accept"/>
+                        <button name="cancel" states="confirm" string="Refuse" type="workflow"/>
+                        <button name="done" states="confirm" string="Accept" type="workflow"/>
                     </group>
                 </form>
             </field>