diff --git a/apps/server/src/storage.ts b/apps/server/src/storage.ts
index 0272648..f267f0b 100644
--- a/apps/server/src/storage.ts
+++ b/apps/server/src/storage.ts
@@ -174,7 +174,19 @@ export async function sweepOrphanObjects(
   );
   const revisions = await client.documentRevision.findMany({ where: { prunedAt: null }, select: { storageKey: true } });
   const attachments = await client.attachment.findMany({ where: { deletedAt: null }, select: { storageKey: true } });
-  const referenced = new Set([...revisions.map((r) => r.storageKey), ...attachments.map((a) => a.storageKey)]);
+  // Profile-style blobs (workspace logos) are written through writeBlob, so their keys match
+  // ATTACHMENT_KEY_RE and the sweep lists them — but they are owned by a column on another table,
+  // not by an Attachment row. Every owner of a content-addressed key must be enumerated here or
+  // the sweep deletes a live blob and the read path 404s a logo the user did upload.
+  const logos = await client.workspace.findMany({
+    where: { logoStorageKey: { not: null } },
+    select: { logoStorageKey: true },
+  });
+  const referenced = new Set([
+    ...revisions.map((r) => r.storageKey),
+    ...attachments.map((a) => a.storageKey),
+    ...logos.map((w) => w.logoStorageKey as string),
+  ]);
   const now = Date.now();
   let removed = 0;
   let kept = 0;
diff --git a/apps/server/src/storage/facade.test.ts b/apps/server/src/storage/facade.test.ts
index 938d564..e65e600 100644
--- a/apps/server/src/storage/facade.test.ts
+++ b/apps/server/src/storage/facade.test.ts
@@ -75,6 +75,7 @@ describe("storage facade with an injected backend", () => {
     const fakeClient = {
       documentRevision: { findMany: async () => [{ storageKey: referenced.storageKey }] },
       attachment: { findMany: async () => [] },
+      workspace: { findMany: async () => [] },
     } as never;
 
     const res = await storage.sweepOrphanObjects(fakeClient, 60 * 60 * 1000);
diff --git a/apps/server/src/workspaces/logo.ts b/apps/server/src/workspaces/logo.ts
index 9f4e13e..ad8c89e 100644
--- a/apps/server/src/workspaces/logo.ts
+++ b/apps/server/src/workspaces/logo.ts
@@ -179,6 +179,13 @@ export async function registerWorkspaceLogoRoutes(app: FastifyInstance): Promise
       bytes = await readBlob(ws.logoStorageKey);
     } catch (err) {
       if (!(err instanceof StorageNotFoundError)) throw err;
+      // The row pointed at a blob that is no longer in storage. Clearing the columns keeps the
+      // UI coherent, but it also erases the only evidence that a logo was ever uploaded — so log
+      // loudly first. A burst of these means something is deleting live blobs.
+      request.log.warn(
+        { workspaceId: request.params.id, storageKey: ws.logoStorageKey },
+        "workspace logo blob missing from storage; clearing logo columns",
+      );
       await prisma.workspace.updateMany({
         where: { id: request.params.id, logoStorageKey: ws.logoStorageKey },
         data: { logoStorageKey: null, logoContentType: null, logoSha: null },
diff --git a/apps/server/test/integration/storage.test.ts b/apps/server/test/integration/storage.test.ts
index 267ffe3..5bd63c3 100644
--- a/apps/server/test/integration/storage.test.ts
+++ b/apps/server/test/integration/storage.test.ts
@@ -134,4 +134,22 @@ describe("storage atomicity + orphan sweep", () => {
     expect(existsSync(join(process.env.STORAGE_ROOT!, liveBlob.storageKey))).toBe(true);
     expect(existsSync(join(process.env.STORAGE_ROOT!, deletedBlob.storageKey))).toBe(false);
   });
+
+  it("keeps a workspace logo blob — it is referenced by a column, not an Attachment row", async () => {
+    const s = await baseScenario();
+    const logo = await writeBlob(Buffer.from("<svg xmlns='http://www.w3.org/2000/svg'/>"), s.ws.id);
+    await prisma.workspace.update({
+      where: { id: s.ws.id },
+      data: { logoStorageKey: logo.storageKey, logoContentType: "image/svg+xml", logoSha: logo.hex },
+    });
+
+    // No grace period: the sweep must keep this blob because it is referenced, not because it is new.
+    const swept = await sweepOrphanObjects(prisma, 0);
+
+    expect(existsSync(join(process.env.STORAGE_ROOT!, logo.storageKey))).toBe(true);
+    expect(swept.kept).toBeGreaterThanOrEqual(1);
+    // And the pointer survives: the read path clears these columns when the blob is gone.
+    const after = await prisma.workspace.findUnique({ where: { id: s.ws.id }, select: { logoStorageKey: true } });
+    expect(after?.logoStorageKey).toBe(logo.storageKey);
+  });
 });