diff --git a/addons/project/wizard/project_task_delegate_view.xml b/addons/project/wizard/project_task_delegate_view.xml
index 69d6b2c495e..0eb37be406d 100644
--- a/addons/project/wizard/project_task_delegate_view.xml
+++ b/addons/project/wizard/project_task_delegate_view.xml
@@ -9,7 +9,9 @@
             <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_on_dirty"  />
+                        <button name="delegate" string="_Delegate" type="object" class="oe_highlight_on_dirty"/>
+                         or
+                        <button string="Cancel" class="oe_link" special="cancel" />
                     </header>
                     <group>
                         <group>
diff --git a/addons/project/wizard/project_task_reevaluate_view.xml b/addons/project/wizard/project_task_reevaluate_view.xml
index 39e3427ff3b..de94e0079b1 100644
--- a/addons/project/wizard/project_task_reevaluate_view.xml
+++ b/addons/project/wizard/project_task_reevaluate_view.xml
@@ -9,7 +9,9 @@
             <field name="arch" type="xml">
                 <form string="Reevaluate Task" version="7.0">
                     <header>
-                        <button icon="gtk-apply" name="compute_hours" string="_Evaluate" type="object" default_focus="1" class="oe_highlight_on_dirty"  />
+                        <button name="compute_hours" string="_Evaluate" type="object" default_focus="1" class="oe_highlight_on_dirty"/>
+                        or
+                        <button string="Cancel" class="oe_link" special="cancel" />
                     </header>
                     <separator string="Reevaluation Task"/>
                     <group>
diff --git a/addons/project_gtd/wizard/project_gtd_fill_view.xml b/addons/project_gtd/wizard/project_gtd_fill_view.xml
index 1e63624a138..ebf6af88061 100644
--- a/addons/project_gtd/wizard/project_gtd_fill_view.xml
+++ b/addons/project_gtd/wizard/project_gtd_fill_view.xml
@@ -9,7 +9,9 @@
             <field name="arch" type="xml">
                 <form string="Plannify Timebox" version="7.0">
                     <header>
-                        <button name="process" icon="gtk-ok" string="Add to Timebox" type="object" class="oe_highlight_on_dirty"  />
+                        <button name="process" string="Add to Timebox" type="object" class="oe_highlight_on_dirty"/>
+                        or
+                        <button string="Cancel" class="oe_link" special="cancel" />
                     </header>
                       <group col="4">
                           <field name="timebox_id" widget="selection"/>
diff --git a/addons/project_long_term/wizard/project_compute_phases_view.xml b/addons/project_long_term/wizard/project_compute_phases_view.xml
index 2d84ae412c7..341997a1952 100644
--- a/addons/project_long_term/wizard/project_compute_phases_view.xml
+++ b/addons/project_long_term/wizard/project_compute_phases_view.xml
@@ -9,7 +9,9 @@
             <field name="arch" type="xml">
                   <form string="Schedule Phases" version="7.0">
                       <header>
-                          <button icon="gtk-ok" name="check_selection" string="C_ompute" type="object" class="oe_highlight_on_dirty"  />
+                          <button name="check_selection" string="C_ompute" type="object" class="oe_highlight_on_dirty"/>
+                          or
+                         <button string="Cancel" class="oe_link" special="cancel" />
                       </header>
                       <group>
                           <field name="target_project"/>
diff --git a/addons/project_long_term/wizard/project_compute_tasks_view.xml b/addons/project_long_term/wizard/project_compute_tasks_view.xml
index 32bae94b246..7cf603f64d8 100644
--- a/addons/project_long_term/wizard/project_compute_tasks_view.xml
+++ b/addons/project_long_term/wizard/project_compute_tasks_view.xml
@@ -9,7 +9,9 @@
             <field name="arch" type="xml">
                  <form string="Schedule Tasks" version="7.0">
                      <header>
-                         <button icon="gtk-ok" name="compute_date" string="C_ompute" type="object" class="oe_highlight_on_dirty"  />
+                         <button name="compute_date" string="C_ompute" type="object" class="oe_highlight_on_dirty"/>
+                         or
+                        <button string="Cancel" class="oe_link" special="cancel" />
                      </header>
                      <group>
                          <field name="project_id"/>