diff --git a/addons/web_calendar/static/src/less/web_calendar.less b/addons/web_calendar/static/src/less/web_calendar.less
index d9eb5f1f9d2..fef21be5ab7 100644
--- a/addons/web_calendar/static/src/less/web_calendar.less
+++ b/addons/web_calendar/static/src/less/web_calendar.less
@@ -126,6 +126,13 @@
     }
 }
 
+.modal {
+    .o_attendee_head {
+        width: 32px;
+        margin-right: 5px;
+    }
+}
+
 .o_dashboard {
     .o_calendar_container .o_calendar_sidebar_container {
         display: none;