diff --git a/extensions/nostr/doctor-contract-api.test.ts b/extensions/nostr/doctor-contract-api.test.ts
index ba9e298408d0..88cbebb7caa8 100644
--- a/extensions/nostr/doctor-contract-api.test.ts
+++ b/extensions/nostr/doctor-contract-api.test.ts
@@ -102,4 +102,33 @@ describe("nostr doctor state migration", () => {
       lastPublishResults: { "wss://relay.example": "ok" },
     });
   });
+
+  it("preserves legacy account key bytes when importing state files", async () => {
+    const nostrDir = path.join(stateDir, "nostr");
+    const busPath = path.join(nostrDir, "bus-state-Team.A.json");
+    await fs.mkdir(nostrDir, { recursive: true });
+    await fs.writeFile(
+      busPath,
+      JSON.stringify({
+        version: 1,
+        lastProcessedAt: 1700,
+        gatewayStartedAt: 1600,
+      }),
+    );
+
+    const context = createDoctorContext(env);
+    await stateMigrations[0].migrateLegacyState({
+      config: {},
+      env,
+      stateDir,
+      oauthDir: path.join(stateDir, "oauth"),
+      context,
+    });
+
+    const store = context.openPluginStateKeyedStore({ namespace: "bus-state", maxEntries: 256 });
+    await expect(store.lookup("Team.A")).resolves.toMatchObject({
+      lastProcessedAt: 1700,
+    });
+    await expect(store.lookup("team-a")).resolves.toBeUndefined();
+  });
 });
diff --git a/extensions/nostr/doctor-contract-api.ts b/extensions/nostr/doctor-contract-api.ts
index 6189dd363436..dbb6e1aec55f 100644
--- a/extensions/nostr/doctor-contract-api.ts
+++ b/extensions/nostr/doctor-contract-api.ts
@@ -3,6 +3,7 @@ import type { Dirent } from "node:fs";
 import fs from "node:fs/promises";
 import path from "node:path";
 import type { PluginDoctorStateMigration } from "openclaw/plugin-sdk/runtime-doctor";
+import { normalizeNostrStateAccountId } from "./src/state-account-id.js";
 
 type NostrBusState = {
   version: 2;
@@ -22,14 +23,6 @@ const BUS_STATE_NAMESPACE = "bus-state";
 const PROFILE_STATE_NAMESPACE = "profile-state";
 const MAX_NOSTR_STATE_ENTRIES = 256;
 
-function normalizeAccountId(accountId?: string): string {
-  const trimmed = accountId?.trim();
-  if (!trimmed) {
-    return "default";
-  }
-  return trimmed.replace(/[^a-z0-9._-]+/gi, "_");
-}
-
 function finiteNumberOrNull(value: unknown): number | null {
   return typeof value === "number" && Number.isFinite(value) ? value : null;
 }
@@ -114,7 +107,7 @@ async function listLegacyFiles(params: {
       continue;
     }
     const rawAccountId = entry.name.slice(params.prefix.length, -suffix.length);
-    const accountId = normalizeAccountId(rawAccountId);
+    const accountId = normalizeNostrStateAccountId(rawAccountId);
     const filePath = path.join(dir, entry.name);
     try {
       const value = params.parse(await readJsonFile(filePath));
diff --git a/extensions/nostr/src/nostr-state-store.test.ts b/extensions/nostr/src/nostr-state-store.test.ts
index 19b0922bfe4d..0c2492760a61 100644
--- a/extensions/nostr/src/nostr-state-store.test.ts
+++ b/extensions/nostr/src/nostr-state-store.test.ts
@@ -97,6 +97,21 @@ describe("nostr bus state store", () => {
       expect(stateB?.lastProcessedAt).toBe(2000);
     });
   });
+
+  it("preserves legacy account key bytes for state lookup", async () => {
+    await withTempStateDir(async () => {
+      await writeNostrBusState({
+        accountId: " Team.A ",
+        lastProcessedAt: 1234,
+        gatewayStartedAt: 1200,
+      });
+
+      await expect(readNostrBusState({ accountId: "Team.A" })).resolves.toMatchObject({
+        lastProcessedAt: 1234,
+      });
+      await expect(readNostrBusState({ accountId: "team-a" })).resolves.toBeNull();
+    });
+  });
 });
 
 describe("nostr profile state store", () => {
diff --git a/extensions/nostr/src/nostr-state-store.ts b/extensions/nostr/src/nostr-state-store.ts
index 49447cc7afc9..e090a7780937 100644
--- a/extensions/nostr/src/nostr-state-store.ts
+++ b/extensions/nostr/src/nostr-state-store.ts
@@ -1,5 +1,6 @@
 // Nostr plugin module implements nostr state store behavior.
 import { getNostrRuntime } from "./runtime.js";
+import { normalizeNostrStateAccountId } from "./state-account-id.js";
 
 const STORE_VERSION = 2;
 const PROFILE_STATE_VERSION = 1;
@@ -25,14 +26,6 @@ type NostrProfileState = {
   lastPublishResults: Record<string, "ok" | "failed" | "timeout"> | null;
 };
 
-function normalizeAccountId(accountId?: string): string {
-  const trimmed = accountId?.trim();
-  if (!trimmed) {
-    return "default";
-  }
-  return trimmed.replace(/[^a-z0-9._-]+/gi, "_");
-}
-
 function openNostrBusStateStore(env?: NodeJS.ProcessEnv) {
   return getNostrRuntime().state.openKeyedStore<NostrBusState>({
     namespace: "bus-state",
@@ -54,7 +47,9 @@ export async function readNostrBusState(params: {
   env?: NodeJS.ProcessEnv;
 }): Promise<NostrBusState | null> {
   return (
-    (await openNostrBusStateStore(params.env).lookup(normalizeAccountId(params.accountId))) ?? null
+    (await openNostrBusStateStore(params.env).lookup(
+      normalizeNostrStateAccountId(params.accountId),
+    )) ?? null
   );
 }
 
@@ -71,7 +66,10 @@ export async function writeNostrBusState(params: {
     gatewayStartedAt: params.gatewayStartedAt,
     recentEventIds: (params.recentEventIds ?? []).filter((x): x is string => typeof x === "string"),
   };
-  await openNostrBusStateStore(params.env).register(normalizeAccountId(params.accountId), payload);
+  await openNostrBusStateStore(params.env).register(
+    normalizeNostrStateAccountId(params.accountId),
+    payload,
+  );
 }
 
 /**
@@ -107,8 +105,9 @@ export async function readNostrProfileState(params: {
   env?: NodeJS.ProcessEnv;
 }): Promise<NostrProfileState | null> {
   return (
-    (await openNostrProfileStateStore(params.env).lookup(normalizeAccountId(params.accountId))) ??
-    null
+    (await openNostrProfileStateStore(params.env).lookup(
+      normalizeNostrStateAccountId(params.accountId),
+    )) ?? null
   );
 }
 
@@ -126,7 +125,7 @@ export async function writeNostrProfileState(params: {
     lastPublishResults: params.lastPublishResults,
   };
   await openNostrProfileStateStore(params.env).register(
-    normalizeAccountId(params.accountId),
+    normalizeNostrStateAccountId(params.accountId),
     payload,
   );
 }
diff --git a/extensions/nostr/src/state-account-id.ts b/extensions/nostr/src/state-account-id.ts
new file mode 100644
index 000000000000..77fd9f06ce5a
--- /dev/null
+++ b/extensions/nostr/src/state-account-id.ts
@@ -0,0 +1,8 @@
+// Nostr state stores keep legacy account key bytes; do not use the newer SDK normalizer here.
+export function normalizeNostrStateAccountId(accountId?: string): string {
+  const trimmed = accountId?.trim();
+  if (!trimmed) {
+    return "default";
+  }
+  return trimmed.replace(/[^a-z0-9._-]+/gi, "_");
+}