diff --git a/src/Umbraco.Web.UI.Client/src/views/propertyeditors/membergrouppicker/membergrouppicker.html b/src/Umbraco.Web.UI.Client/src/views/propertyeditors/membergrouppicker/membergrouppicker.html
index 48e1851262..4c53ac5d17 100644
--- a/src/Umbraco.Web.UI.Client/src/views/propertyeditors/membergrouppicker/membergrouppicker.html
+++ b/src/Umbraco.Web.UI.Client/src/views/propertyeditors/membergrouppicker/membergrouppicker.html
@@ -18,4 +18,6 @@
 		<localize key="general_add">Add</localize>
 	</a>
 
+    <input type="hidden" name="mandatory" ng-model="model.mandatory" ng-required="model.validation.mandatory && !renderModel.length" />
+
 </div>
diff --git a/src/Umbraco.Web.UI.Client/src/views/propertyeditors/memberpicker/memberpicker.html b/src/Umbraco.Web.UI.Client/src/views/propertyeditors/memberpicker/memberpicker.html
index d8f04eeae5..d968f08d71 100644
--- a/src/Umbraco.Web.UI.Client/src/views/propertyeditors/memberpicker/memberpicker.html
+++ b/src/Umbraco.Web.UI.Client/src/views/propertyeditors/memberpicker/memberpicker.html
@@ -18,4 +18,6 @@
 		<localize key="general_add">Add</localize>
 	</a>
 
+    <input type="hidden" name="mandatory" ng-model="model.mandatory" ng-required="model.validation.mandatory && !renderModel.length" />
+
 </div>