diff --git a/services/static-webserver/client/source/class/osparc/filter/CollaboratorToggleButton.js b/services/static-webserver/client/source/class/osparc/filter/CollaboratorToggleButton.js
index 013df17a4f3..0008c5d7c48 100644
--- a/services/static-webserver/client/source/class/osparc/filter/CollaboratorToggleButton.js
+++ b/services/static-webserver/client/source/class/osparc/filter/CollaboratorToggleButton.js
@@ -23,10 +23,14 @@ qx.Class.define("osparc.filter.CollaboratorToggleButton", {
       appearance: "tagbutton"
     });
 
-    const label = collaborator.getLabel();
+    let label = collaborator.getLabel();
+    if ("getEmail" in collaborator && collaborator.getEmail()) {
+      label += ` (${collaborator.getEmail()})`;
+    }
     this.setLabel(label);
+
     if (collaborator.getDescription()) {
-      const ttt = label + "<br>" + collaborator.getDescription();
+      const ttt = collaborator.getLabel() + "<br>" + collaborator.getDescription();
       this.setToolTipText(ttt);
     }
 
diff --git a/services/static-webserver/client/source/class/osparc/share/NewCollaboratorsManager.js b/services/static-webserver/client/source/class/osparc/share/NewCollaboratorsManager.js
index d8bfe447fd2..fcbe5befff5 100644
--- a/services/static-webserver/client/source/class/osparc/share/NewCollaboratorsManager.js
+++ b/services/static-webserver/client/source/class/osparc/share/NewCollaboratorsManager.js
@@ -18,7 +18,7 @@ qx.Class.define("osparc.share.NewCollaboratorsManager", {
       showMaximize: false,
       autoDestroy: true,
       modal: true,
-      width: 300,
+      width: 350,
       maxHeight: 500,
       clickAwayClose: true
     });