diff --git a/apps/desktop/src/components/sidebar/TreeItem.vue b/apps/desktop/src/components/sidebar/TreeItem.vue
index cc985f526..f8cccf32c 100644
--- a/apps/desktop/src/components/sidebar/TreeItem.vue
+++ b/apps/desktop/src/components/sidebar/TreeItem.vue
@@ -66,7 +66,7 @@ import type { ColumnInfo, ConnectionConfig, DatabaseType, TreeNode, TreeNodeType
 import * as api from "@/lib/api";
 import { uuid } from "@/lib/utils";
 import { resolveDefaultDatabase } from "@/lib/defaultDatabase";
-import { canTreeNodeShowExpander, treeItemPaddingLeft, usesFullWidthTreeLabel } from "@/lib/sidebarTreeItemLayout";
+import { canTreeNodePin, canTreeNodeShowExpander, treeItemPaddingLeft, usesFullWidthTreeLabel } from "@/lib/sidebarTreeItemLayout";
 import { buildTableSelectSql } from "@/lib/tableSelectSql";
 import { buildTableDeleteTemplate, buildTableInsertTemplate, buildTableSelectTemplate, buildTableUpdateTemplate } from "@/lib/tableSqlTemplates";
 import { connectionFilePath, defaultSqliteBackupFileName, isMemorySqlitePath, sqliteBackupSourcePath } from "@/lib/connectionFile";
@@ -302,8 +302,6 @@ function getIconInfo(node: TreeNode): { icon: any; colorClass: string } | null {
 }
 
 const groupTypes: Set<TreeNodeType> = new Set(["group-columns", "group-indexes", "group-fkeys", "group-triggers", "group-tables", "group-views", "group-materialized-views", "group-procedures", "group-functions", "group-sequences", "group-packages", "group-partitions"]);
-const pinnableTypes: Set<TreeNodeType> = new Set(["connection-group", "database", "linked-server", "linked-server-catalog", "linked-server-schema", "schema", "table", "view", "materialized_view", "redis-db", "mongo-db", "mongo-collection", "vector-collection", "elasticsearch-index"]);
-
 function isGroupLabel(node: TreeNode): boolean {
   return groupTypes.has(node.type);
 }
@@ -3048,7 +3046,7 @@ const canExpand = computed(() =>
     childCount: props.node.children?.length ?? 0,
   }),
 );
-const canPin = computed(() => pinnableTypes.has(props.node.type));
+const canPin = computed(() => canTreeNodePin(props.node.type));
 const canOpenSqlFileExecution = computed(() => {
   return supportsSqlFileExecution(rawDatabaseType());
 });
diff --git a/apps/desktop/src/lib/sidebarTreeItemLayout.ts b/apps/desktop/src/lib/sidebarTreeItemLayout.ts
index f1bfb7b82..d3d798803 100644
--- a/apps/desktop/src/lib/sidebarTreeItemLayout.ts
+++ b/apps/desktop/src/lib/sidebarTreeItemLayout.ts
@@ -6,6 +6,24 @@ const fullWidthLabelTypes: Set<TreeNodeType> = new Set(["table", "view", "materi
 
 const emptyContainerTypes: Set<TreeNodeType> = new Set(["saved-sql-root", "saved-sql-folder"]);
 
+const pinnableTypes: Set<TreeNodeType> = new Set([
+  "connection-group",
+  "database",
+  "linked-server",
+  "linked-server-catalog",
+  "linked-server-schema",
+  "schema",
+  "table",
+  "view",
+  "materialized_view",
+  "redis-db",
+  "mongo-db",
+  "mongo-collection",
+  "vector-collection",
+  "elasticsearch-index",
+  "nacos-namespace",
+]);
+
 export function treeItemPaddingLeft(depth: number): string {
   return `${depth * 16 + 8}px`;
 }
@@ -23,3 +41,7 @@ export function canTreeNodeShowExpander({ type, childCount }: { type: TreeNodeTy
   if (childCount === 0 && emptyContainerTypes.has(type)) return false;
   return true;
 }
+
+export function canTreeNodePin(type: TreeNodeType): boolean {
+  return pinnableTypes.has(type);
+}
diff --git a/packages/app-tests/sidebarTreeItemLayout.test.ts b/packages/app-tests/sidebarTreeItemLayout.test.ts
index 475ef4bfe..073e78394 100644
--- a/packages/app-tests/sidebarTreeItemLayout.test.ts
+++ b/packages/app-tests/sidebarTreeItemLayout.test.ts
@@ -1,6 +1,6 @@
 import { test } from "vitest";
 import assert from "node:assert/strict";
-import { canTreeNodeShowExpander } from "../../apps/desktop/src/lib/sidebarTreeItemLayout.ts";
+import { canTreeNodePin, canTreeNodeShowExpander } from "../../apps/desktop/src/lib/sidebarTreeItemLayout.ts";
 
 test("mongodb collection rows can show an expander for metadata groups", () => {
   assert.equal(canTreeNodeShowExpander({ type: "mongo-collection", childCount: 0 }), true);
@@ -9,3 +9,7 @@ test("mongodb collection rows can show an expander for metadata groups", () => {
 test("ZooKeeper root rows do not show an empty expander", () => {
   assert.equal(canTreeNodeShowExpander({ type: "zookeeper-root", childCount: 0 }), false);
 });
+
+test("Nacos namespace rows can show the pin action", () => {
+  assert.equal(canTreeNodePin("nacos-namespace"), true);
+});