diff --git a/public/app/features/alerting/unified/NotificationPolicies.tsx b/public/app/features/alerting/unified/NotificationPolicies.tsx
index d09f48e8fb5..eacc9c37e88 100644
--- a/public/app/features/alerting/unified/NotificationPolicies.tsx
+++ b/public/app/features/alerting/unified/NotificationPolicies.tsx
@@ -200,7 +200,7 @@ const AmRoutes = () => {
     updatingTree
   );
   const [deleteModal, openDeleteModal, closeDeleteModal] = useDeletePolicyModal(handleDelete, updatingTree);
-  const [alertInstancesModal, showAlertGroupsModal] = useAlertGroupsModal();
+  const [alertInstancesModal, showAlertGroupsModal] = useAlertGroupsModal(selectedAlertmanager ?? '');
 
   useCleanup((state) => (state.unifiedAlerting.saveAMConfig = initialAsyncRequestState));
 
diff --git a/public/app/features/alerting/unified/components/notification-policies/Modals.tsx b/public/app/features/alerting/unified/components/notification-policies/Modals.tsx
index 08b9b8d3aa4..7c79ea2795b 100644
--- a/public/app/features/alerting/unified/components/notification-policies/Modals.tsx
+++ b/public/app/features/alerting/unified/components/notification-policies/Modals.tsx
@@ -212,11 +212,9 @@ const useDeletePolicyModal = (handleDelete: (route: RouteWithID) => void, loadin
   return [modalElement, handleShow, handleDismiss];
 };
 
-const useAlertGroupsModal = (): [
-  JSX.Element,
-  (alertGroups: AlertmanagerGroup[], matchers?: ObjectMatcher[]) => void,
-  () => void,
-] => {
+const useAlertGroupsModal = (
+  alertManagerSourceName: string
+): [JSX.Element, (alertGroups: AlertmanagerGroup[], matchers?: ObjectMatcher[]) => void, () => void] => {
   const [showModal, setShowModal] = useState(false);
   const [alertGroups, setAlertGroups] = useState<AlertmanagerGroup[]>([]);
   const [matchers, setMatchers] = useState<ObjectMatcher[]>([]);
@@ -271,7 +269,7 @@ const useAlertGroupsModal = (): [
           />
           <div>
             {alertGroups.map((group, index) => (
-              <AlertGroup key={index} alertManagerSourceName={''} group={group} />
+              <AlertGroup key={index} alertManagerSourceName={alertManagerSourceName} group={group} />
             ))}
           </div>
         </Stack>
@@ -282,7 +280,7 @@ const useAlertGroupsModal = (): [
         </Modal.ButtonRow>
       </Modal>
     ),
-    [alertGroups, handleDismiss, instancesByState, matchers, formatter, showModal]
+    [alertGroups, handleDismiss, instancesByState, matchers, formatter, showModal, alertManagerSourceName]
   );
 
   return [modalElement, handleShow, handleDismiss];