diff --git a/src/styles/base/header.scss b/src/styles/base/header.scss
index 4b3b692..883cd94 100644
--- a/src/styles/base/header.scss
+++ b/src/styles/base/header.scss
@@ -191,10 +191,15 @@ solid-notifications {
           padding: 1.2rem 0 1.5rem;
 
           .solid-notification__avatar {
+            background: var(--color-avatar-background);
+            display: flex;
+            align-items: center;
+            justify-content: center;
             height: 35px;
             width: 35px;
             margin-left: 1.6rem;
             margin-right: 1.4rem;
+            overflow: hidden;
           }
 
           .solid-notification__content {
diff --git a/src/views/circle/page-circle-notifications.pug b/src/views/circle/page-circle-notifications.pug
index 90b2e86..19a3ebb 100644
--- a/src/views/circle/page-circle-notifications.pug
+++ b/src/views/circle/page-circle-notifications.pug
@@ -1,7 +1,7 @@
 solid-notifications-template(data-rdf-type='hd:circle')
   template
     .solid-notification__avatar
-      img(src="${await author['account.foaf:depiction']}")
+      img(src="${await author['account.foaf:depiction']} || /../../images/alien.svg" style=`max-height:${clientLogoHeight || '18px'}`)
     .solid-notification__content
       .solid-notification__title ${await author.name} 
         span.solid-notification__title__side dans 
diff --git a/src/views/user/page-user-notifications.pug b/src/views/user/page-user-notifications.pug
index fd4aef3..5b31006 100644
--- a/src/views/user/page-user-notifications.pug
+++ b/src/views/user/page-user-notifications.pug
@@ -1,7 +1,7 @@
 solid-notifications-template(data-rdf-type='foaf:user')
   template
     .solid-notification__avatar
-      img(src="${await author['account.foaf:depiction']}")
+      img(src="${await author['account.foaf:depiction']} || /../../images/alien.svg" style=`max-height:${clientLogoHeight || '18px'}`)
     .solid-notification__content
       .solid-notification__title ${await author.name} 
         span.solid-notification__title__side en privé