diff --git a/css/backoffice/layout/_navigation-menu.scss b/css/backoffice/layout/_navigation-menu.scss
index 5b7dc3647..1460932ee 100644
--- a/css/backoffice/layout/_navigation-menu.scss
+++ b/css/backoffice/layout/_navigation-menu.scss
@@ -477,10 +477,13 @@ $ibo-navigation-menu--user-info--height--is-expanded: 100% !default;
 	transition-duration: 0.1s;
 	transition-timing-function: linear;
 
-	> .ibo-navigation-menu--menu-group-icon,
-	> .ibo-navigation-menu--menu-group-title{
+	> .ibo-navigation-menu--menu-group-icon{
 		display: flex; /* To avoid end space due to display:inline-block */
 	}
+  .ibo-navigation-menu--menu-group-title{
+    flex-grow: 1;
+    /* Note that display property is not set to flex on purpose so its text has an ellipsis on overflow */
+  }
 
 	&:not(:last-child){
 		margin-bottom: $ibo-navigation-menu--middle-part--elements-spacing;