diff --git a/addons/hr_timesheet_invoice/hr_timesheet_invoice_view.xml b/addons/hr_timesheet_invoice/hr_timesheet_invoice_view.xml
index d23b1708cc8..6aaf63a0c03 100644
--- a/addons/hr_timesheet_invoice/hr_timesheet_invoice_view.xml
+++ b/addons/hr_timesheet_invoice/hr_timesheet_invoice_view.xml
@@ -25,7 +25,7 @@
                 <xpath expr="/form/sheet" position='before'>
                     <header>
                         <button name="set_pending" string="Pending" type="object" states="open" />
-                        <button name="set_close" string="Close" type="object" states="open,pending" class="oe_highlight"/>
+                        <button name="set_close" string="Close" type="object" states="open,pending" />
                         <button name="set_open" string="Re-open project" type="object" states="pending,close" />
                         <button name="set_open" string="Re-open project" type="object" states="cancelled,draft"/>
                         <button name="set_cancel" string="Cancel" type="object" states="open,pending"/>
diff --git a/addons/project/project_view.xml b/addons/project/project_view.xml
index 499fc1938b2..e45216685ff 100644
--- a/addons/project/project_view.xml
+++ b/addons/project/project_view.xml
@@ -20,7 +20,7 @@
             <field name="arch" type="xml">
                 <form string="Project" version="7.0">
                 <header>
-                    <button name="set_done" string="Done" type="object" states="open,pending" class="oe_highlight"/>
+                    <button name="set_done" string="Done" type="object" states="open,pending" />
                     <button name="set_open" string="Re-open project" type="object" states="pending" class="oe_highlight"/>
                     <button name="set_open" string="Re-open project" type="object" states="cancelled,close" />
                     <button name="set_pending" string="Pending" type="object" states="open" />
@@ -337,7 +337,7 @@
                          <button name="%(action_project_task_reevaluate)d" string="Reactivate" type="action"
                                 states="cancelled" context="{'button_reactivate':True}"/>
                         <button name="action_close" string="Done" type="object"
-                                states="open,draft,pending" class="oe_highlight"/>
+                                states="open,draft,pending" />
                         <button name="do_pending" string="Pending" type="object"
                                 states="open" />
                         <button name="%(action_project_task_delegate)d" string="Delegate" type="action"
diff --git a/addons/project/wizard/project_task_delegate_view.xml b/addons/project/wizard/project_task_delegate_view.xml
index 67500a0b7ed..8c80e9ae98a 100644
--- a/addons/project/wizard/project_task_delegate_view.xml
+++ b/addons/project/wizard/project_task_delegate_view.xml
@@ -9,7 +9,7 @@
             <field name="arch" type="xml">
                 <form string="Project Task Delegate" version="7.0">
                     <header>
-                        <button icon="gtk-ok" name="delegate" string="_Delegate" type="object" class="oe_highlight"/>
+                        <button icon="gtk-ok" name="delegate" string="_Delegate" type="object"  />
                     </header>
                     <group>
                         <group>
diff --git a/addons/project_issue/project_issue_view.xml b/addons/project_issue/project_issue_view.xml
index 873499c0098..d3f8ebdab33 100644
--- a/addons/project_issue/project_issue_view.xml
+++ b/addons/project_issue/project_issue_view.xml
@@ -58,7 +58,7 @@
                     <button name="case_open" string="Open" type="object"
                             states="draft,pending" class="oe_highlight"/>
                     <button name="case_close" string="Done" type="object"
-                            states="open" class="oe_highlight"/>
+                            states="open"/>
                      <button name="case_close" string="Done" type="object"
                             states="draft,pending"/>
                     <button name="case_pending" string="Pending" type="object"
diff --git a/addons/project_long_term/project_long_term_view.xml b/addons/project_long_term/project_long_term_view.xml
index 6d992a96cdc..aaee541c9e6 100644
--- a/addons/project_long_term/project_long_term_view.xml
+++ b/addons/project_long_term/project_long_term_view.xml
@@ -144,7 +144,7 @@
                 <form string="Project Phase" version="7.0">
                 <header>
                     <button string="Start Phase" name="set_open" states="pending,draft" class="oe_highlight"/>
-                    <button string="Done" name="set_done" states="pending,open" class="oe_highlight"/>
+                    <button string="Done" name="set_done" states="pending,open" />
                     <button string="Pending" name="set_pending" states="open" />
                     <button string="Draft" name="set_draft" states="open" />
                     <button string="Cancel" name="set_cancel" states="draft,open,pending"/>