diff --git a/src/domain/dashboard/utils/work-order-drilldown-links.ts b/src/domain/dashboard/utils/work-order-drilldown-links.ts
index 4388c018..c1241382 100644
--- a/src/domain/dashboard/utils/work-order-drilldown-links.ts
+++ b/src/domain/dashboard/utils/work-order-drilldown-links.ts
@@ -1,7 +1,7 @@
 import { ALL_WIZARD_STATUSES } from "@/domain/work-orders/types/work-order-wizard";
 import { WO_TYPES, type WOType } from "@/domain/work-orders/types/work-order-wizard";
 import type { DashboardRangeKey } from "@/domain/dashboard/types/dashboard-range";
-import { BOARD_DISPATCHER_UNASSIGNED } from "@/domain/work-orders/types/work-order-board";
+import { ASSIGNEE_FILTER_UNASSIGNED } from "@/domain/work-orders/types/work-order-list";
 import {
   addDaysIso,
   businessTodayIso,
@@ -85,7 +85,7 @@ export function workOrderRegionDrilldownSearch(
  */
 export function unassignedDrilldownSearch(range: DashboardRangeKey): URLSearchParams {
   const search = workOrderRangeDrilldownSearch(range);
-  search.set("dispatchers", BOARD_DISPATCHER_UNASSIGNED);
+  search.set("dispatchers", ASSIGNEE_FILTER_UNASSIGNED);
   search.set("statuses", OPEN_WIZARD_STATUSES.join(","));
   return search;
 }
diff --git a/src/test/app/(protected)/dashboard/dashboard-page.test.tsx b/src/test/app/(protected)/dashboard/dashboard-page.test.tsx
index 1c730a6f..b74fd594 100644
--- a/src/test/app/(protected)/dashboard/dashboard-page.test.tsx
+++ b/src/test/app/(protected)/dashboard/dashboard-page.test.tsx
@@ -273,7 +273,7 @@ describe("DashboardPage", () => {
 
     const weekUrl = new URL(lastNavigation(), "http://x");
     expect(weekUrl.pathname).toBe("/workorders");
-    expect(weekUrl.searchParams.get("dispatchers")).toBe("__unassigned__");
+    expect(weekUrl.searchParams.get("dispatchers")).toBe("__unassigned");
     expect(weekUrl.searchParams.get("statuses")).not.toContain("Completed");
     expect(weekUrl.searchParams.get("dateFrom")).toMatch(/^\d{4}-\d{2}-\d{2}$/);
     expect(weekUrl.searchParams.get("dateTo")).toMatch(/^\d{4}-\d{2}-\d{2}$/);
@@ -282,7 +282,7 @@ describe("DashboardPage", () => {
     fireEvent.click(screen.getByRole("button", { name: /Unassigned/ }));
 
     const allTimeUrl = new URL(lastNavigation(), "http://x");
-    expect(allTimeUrl.searchParams.get("dispatchers")).toBe("__unassigned__");
+    expect(allTimeUrl.searchParams.get("dispatchers")).toBe("__unassigned");
     expect(allTimeUrl.searchParams.has("dateFrom")).toBe(false);
     expect(allTimeUrl.searchParams.has("dateTo")).toBe(false);
   });
diff --git a/src/test/domain/work-orders/dashboard-drilldown-params.test.ts b/src/test/domain/work-orders/dashboard-drilldown-params.test.ts
index 6557acd2..7faab8b0 100644
--- a/src/test/domain/work-orders/dashboard-drilldown-params.test.ts
+++ b/src/test/domain/work-orders/dashboard-drilldown-params.test.ts
@@ -5,6 +5,8 @@ import {
   unassignedDrilldownSearch,
 } from "@/domain/dashboard/utils/work-order-drilldown-links";
 import { NON_TERMINAL_LIFECYCLE_STATUSES } from "@/domain/work-orders/types/work-order-board";
+import { ASSIGNEE_FILTER_UNASSIGNED } from "@/domain/work-orders/types/work-order-list";
+import { buildAdvancedFilterChips } from "@/domain/work-orders/utils/advanced-filters-utils";
 import { toBoardSearchQueryParams } from "@/domain/work-orders/utils/board-query-params";
 
 describe("parseDashboardDrilldownParams", () => {
@@ -88,6 +90,18 @@ describe("parseDashboardDrilldownParams", () => {
     expect(weekParams.includeDateless).toBeUndefined();
   });
 
+  it("opens the Unassigned tile link as the Unassigned option of Assigned to", () => {
+    const filters = parseDashboardDrilldownParams(unassignedDrilldownSearch("this-week"));
+    expect(filters?.dispatchers).toEqual(new Set([ASSIGNEE_FILTER_UNASSIGNED]));
+
+    const chips = buildAdvancedFilterChips(filters!, { dispatcherNameOf: (id) => id });
+    const assignedTo = chips.filter((chip) => chip.group === "Assigned to");
+    expect(assignedTo.map((chip) => chip.value)).toEqual(["Unassigned"]);
+
+    const cleared = assignedTo[0]!.clear(filters!);
+    expect(cleared.dispatchers.size).toBe(0);
+  });
+
   it("rejects partial or malformed date ranges", () => {
     expect(
       parseDashboardDrilldownParams(