diff --git a/machines/templates/machines/delete.html b/machines/templates/machines/delete.html
index 1c9811f2..ae365c69 100644
--- a/machines/templates/machines/delete.html
+++ b/machines/templates/machines/delete.html
@@ -34,7 +34,7 @@ with this program; if not, write to the Free Software Foundation, Inc.,
     {% csrf_token %}
     <h4>{% blocktrans %}Warning: are you sure you want to delete this object {{ objet_name }} ( {{ objet }} )?{% endblocktrans %}</h4>
     {% trans "Confirm" as tr_confirm %}
-    {% bootstrap_button tr_confirm button_type="submit" icon="trash" %}
+    {% bootstrap_button tr_confirm button_type="submit" icon='trash' button_class='btn-danger' %}
 </form>
   <br />
   <br />
diff --git a/machines/templates/machines/edit_portlist.html b/machines/templates/machines/edit_portlist.html
index d6a5e9df..5bb8723f 100644
--- a/machines/templates/machines/edit_portlist.html
+++ b/machines/templates/machines/edit_portlist.html
@@ -51,7 +51,7 @@ with this program; if not, write to the Free Software Foundation, Inc.,
         <input class="btn btn-primary btn-sm" role="button" value=value id="add_one">
     </p>
     {% trans "Create or edit" as tr_create_or_edit %}
-    {% bootstrap_button tr_create_or_edit button_type="submit" icon="star" %}
+    {% bootstrap_button tr_create_or_edit icon='ok' button_class='btn-success' %}
 </form>
 <script type="text/javascript">
     var template = `{{ports.empty_form}}`;
diff --git a/machines/templates/machines/machine.html b/machines/templates/machines/machine.html
index 432d11f8..ed6529d0 100644
--- a/machines/templates/machines/machine.html
+++ b/machines/templates/machines/machine.html
@@ -168,7 +168,7 @@ with this program; if not, write to the Free Software Foundation, Inc.,
     	<h3>{% trans "IPv6 address" %}</h3>
         {% bootstrap_form ipv6form %}
     {% endif %}
-    {% bootstrap_button action_name button_type="submit" icon="star" %}
+    {% bootstrap_button action_name button_type="submit" icon='ok' button_class='btn-success' %}
 </form>
   <br />
   <br />
diff --git a/preferences/templates/preferences/edit_preferences.html b/preferences/templates/preferences/edit_preferences.html
index 356f2362..30ab2423 100644
--- a/preferences/templates/preferences/edit_preferences.html
+++ b/preferences/templates/preferences/edit_preferences.html
@@ -38,7 +38,7 @@ with this program; if not, write to the Free Software Foundation, Inc.,
     {% csrf_token %}
     {% massive_bootstrap_form options 'utilisateur_asso' %}
     {% trans "Edit" as tr_edit %}
-    {% bootstrap_button tr_edit button_type="submit" icon="star" %}
+    {% bootstrap_button tr_edit button_type="submit" icon='ok' button_class='btn-success' %}
 </form>
     <br />
     <br />
diff --git a/preferences/templates/preferences/preferences.html b/preferences/templates/preferences/preferences.html
index e4ad4ba2..447df487 100644
--- a/preferences/templates/preferences/preferences.html
+++ b/preferences/templates/preferences/preferences.html
@@ -39,7 +39,7 @@ with this program; if not, write to the Free Software Foundation, Inc.,
     {% if preferenceform %}
     {% bootstrap_form preferenceform %}
     {% endif %}
-    {% bootstrap_button action_name button_type="submit" icon="star" %}
+    {% bootstrap_button action_name button_type="submit" icon='ok' button_class='btn-success' %}
 </form>
   <br />
   <br />
diff --git a/topologie/templates/topologie/delete.html b/topologie/templates/topologie/delete.html
index 97834564..a3b85254 100644
--- a/topologie/templates/topologie/delete.html
+++ b/topologie/templates/topologie/delete.html
@@ -34,7 +34,7 @@ with this program; if not, write to the Free Software Foundation, Inc.,
     {% csrf_token %}
     <h4>{% blocktrans %}Warning: are you sure you want to delete this {{ objet_name }} object ( {{ objet }} )?{% endblocktrans %}</h4>
     {% trans "Confirm" as tr_confirm %}
-    {% bootstrap_button tr_confirm button_type="submit" icon="trash" %}
+    {% bootstrap_button tr_confirm button_type="submit" icon="trash" button_class='btn-danger' %}
 </form>
   <br />
   <br />
diff --git a/topologie/templates/topologie/switch.html b/topologie/templates/topologie/switch.html
index 0e4995ba..48d220fc 100644
--- a/topologie/templates/topologie/switch.html
+++ b/topologie/templates/topologie/switch.html
@@ -44,7 +44,7 @@ with this program; if not, write to the Free Software Foundation, Inc.,
     {% massive_bootstrap_form topoform 'switch_interface' %}
     {% endif %}
     {% trans "Create" as tr_create %}
-    {% bootstrap_button tr_create button_type="submit" icon="ok" %}
+    {% bootstrap_button tr_create button_type="submit" icon='ok' button_class='btn-success' %}
 </form>
   <br />
   <br />
diff --git a/topologie/templates/topologie/topo.html b/topologie/templates/topologie/topo.html
index d02d0c37..ad933a26 100644
--- a/topologie/templates/topologie/topo.html
+++ b/topologie/templates/topologie/topo.html
@@ -38,7 +38,7 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 <form class="form" method="post">
     {% csrf_token %}
     {% massive_bootstrap_form topoform 'room,related,machine_interface,members' %}
-    {% bootstrap_button action_name button_type="submit" icon="ok" %}
+    {% bootstrap_button action_name icon='ok' button_class='btn-success' %}
 </form>
   <br />
   <br />
diff --git a/topologie/templates/topologie/topo_more.html b/topologie/templates/topologie/topo_more.html
index 70e71910..02171bd0 100644
--- a/topologie/templates/topologie/topo_more.html
+++ b/topologie/templates/topologie/topo_more.html
@@ -57,7 +57,7 @@ with this program; if not, write to the Free Software Foundation, Inc.,
     {% bootstrap_form domainform %}
     {% endif %}
     {% trans "Create or edit" as tr_create_or_edit %}
-    {% bootstrap_button tr_create_or_edit button_type="submit" icon="ok" %}
+    {% bootstrap_button tr_create_or_edit button_type="submit" icon='ok' button_class='btn-success' %}
 </form>
   <br />
   <br />
diff --git a/users/templates/users/delete.html b/users/templates/users/delete.html
index 3f71d0d1..f8fb6878 100644
--- a/users/templates/users/delete.html
+++ b/users/templates/users/delete.html
@@ -34,7 +34,7 @@ with this program; if not, write to the Free Software Foundation, Inc.,
     {% csrf_token %}
     <h4>{% blocktrans %}Warning: are you sure you want to delete this {{ objet_name }} object ( {{ objet }} )?{% endblocktrans %}</h4>
     {% trans "Confirm" as tr_confirm %}
-    {% bootstrap_button tr_confirm button_type="submit" icon="trash" %}
+    {% bootstrap_button tr_confirm button_type="submit" icon="trash" button_class='btn-danger' %}
 </form>
 <br />
 <br />
diff --git a/users/templates/users/user.html b/users/templates/users/user.html
index 1ed1a299..3f19d3d8 100644
--- a/users/templates/users/user.html
+++ b/users/templates/users/user.html
@@ -35,7 +35,7 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 <form class="form" method="post">
     {% csrf_token %}
     {% massive_bootstrap_form userform 'room,school,administrators,members' %}
-    {% bootstrap_button action_name button_type="submit" icon="star" %}
+    {% bootstrap_button action_name button_type="submit" icon='ok' button_class='btn-success' %}
 </form>
 {% if load_js_file %}
 <script src="{{ load_js_file }}"></script>