diff --git a/apps/desktop/src/components/sidebar/TreeItem.vue b/apps/desktop/src/components/sidebar/TreeItem.vue
index 0bfe9bbce..608e48398 100644
--- a/apps/desktop/src/components/sidebar/TreeItem.vue
+++ b/apps/desktop/src/components/sidebar/TreeItem.vue
@@ -35,6 +35,7 @@ import {
   Archive,
   Square,
   X,
+  CircleX,
   RefreshCw,
 } from "@lucide/vue";
 import { useConnectionStore } from "@/stores/connectionStore";
@@ -1102,7 +1103,7 @@ function onKeydown(event: KeyboardEvent) {
   </div>
 
   <div v-else @contextmenu="onTreeItemContextMenu">
-    <LightTooltip :text="displayLabel(node)" :disabled="isTooltipDisabled()" side="right" :side-offset="8" :delay="0" :close-delay="30" :surface="detailTooltip ? 'popover' : 'foreground'">
+    <LightTooltip :text="visibleLabel(node)" :disabled="isTooltipDisabled()" side="right" :side-offset="8" :delay="0" :close-delay="30" :surface="detailTooltip ? 'popover' : 'foreground'">
       <div
         ref="rowRef"
         class="group flex items-center gap-2 py-1 px-2 cursor-pointer relative outline-none"
@@ -1145,9 +1146,12 @@ function onKeydown(event: KeyboardEvent) {
           </button>
         </template>
         <span v-else class="w-3.5 h-3.5 shrink-0" />
-        <DatabaseIcon v-if="node.type === 'connection'" :db-type="connectionIconType(node.connectionId)" class="h-3.5 w-3.5 shrink-0" />
-        <Loader2 v-else-if="node.type === 'load-more' && node.isLoading" class="w-3.5 h-3.5 shrink-0 animate-spin text-primary" />
-        <component v-else :is="getIconInfo(node)?.icon || Database" class="w-3.5 h-3.5 shrink-0" :class="databaseOpenVisual.iconClass" />
+        <span class="relative flex h-3.5 w-3.5 shrink-0" :class="{ 'overflow-visible': node.valid === false }">
+          <DatabaseIcon v-if="node.type === 'connection'" :db-type="connectionIconType(node.connectionId)" class="h-3.5 w-3.5 shrink-0" />
+          <Loader2 v-else-if="node.type === 'load-more' && node.isLoading" class="h-3.5 w-3.5 shrink-0 animate-spin text-primary" />
+          <component v-else :is="getIconInfo(node)?.icon || Database" class="h-3.5 w-3.5 shrink-0" :class="databaseOpenVisual.iconClass" />
+          <CircleX v-if="node.valid === false" data-invalid-object-indicator="true" class="pointer-events-none absolute -right-1 -bottom-1 h-2.5 w-2.5 rounded-full bg-background text-destructive stroke-[3]" aria-hidden="true" />
+        </span>
         <div ref="trailingCommentLayoutRef" :class="hasTrailingMetadata() ? 'flex flex-1 min-w-0 items-center' : 'contents'">
           <div ref="trailingCommentLeadingRef" :class="trailingComment ? 'flex max-w-full min-w-0 shrink-0 items-center gap-2' : formattedObjectStorage() ? 'flex min-w-0 flex-1 items-center gap-2' : 'contents'" :style="alignedCommentLeadingStyle()">
             <input
diff --git a/apps/desktop/src/components/sidebar/__tests__/TreeItem.loadMoreActivation.spec.ts b/apps/desktop/src/components/sidebar/__tests__/TreeItem.loadMoreActivation.spec.ts
index a524f9f5d..2a6aac05a 100644
--- a/apps/desktop/src/components/sidebar/__tests__/TreeItem.loadMoreActivation.spec.ts
+++ b/apps/desktop/src/components/sidebar/__tests__/TreeItem.loadMoreActivation.spec.ts
@@ -137,4 +137,46 @@ describe("TreeItem load-more activation", () => {
 
     expect(host.handleRowClick).not.toHaveBeenCalled();
   });
+
+  it("shows the invalid marker for objects reported as invalid", async () => {
+    const node: TreeNode = {
+      id: "connection-1:app:dbo:broken_proc",
+      label: "broken_proc",
+      type: "procedure",
+      connectionId: "connection-1",
+      database: "app",
+      schema: "dbo",
+      valid: false,
+    };
+    const { row } = await mountTreeItem(node);
+
+    expect(row.textContent).toContain("broken_proc · INVALID");
+    expect(row.querySelector('[data-invalid-object-indicator="true"]')).not.toBeNull();
+  });
+
+  it("does not show the invalid marker for valid or unknown-status objects", async () => {
+    const validNode: TreeNode = {
+      id: "connection-1:app:dbo:healthy_proc",
+      label: "healthy_proc",
+      type: "procedure",
+      connectionId: "connection-1",
+      database: "app",
+      schema: "dbo",
+      valid: true,
+    };
+    const unknownNode: TreeNode = {
+      ...validNode,
+      id: "connection-1:app:dbo:unknown_proc",
+      label: "unknown_proc",
+      valid: null,
+    };
+
+    const valid = await mountTreeItem(validNode);
+    expect(valid.row.textContent).not.toContain("INVALID");
+    expect(valid.row.querySelector('[data-invalid-object-indicator="true"]')).toBeNull();
+
+    const unknown = await mountTreeItem(unknownNode);
+    expect(unknown.row.textContent).not.toContain("INVALID");
+    expect(unknown.row.querySelector('[data-invalid-object-indicator="true"]')).toBeNull();
+  });
 });