diff --git a/src/config/paths.ts b/src/config/paths.ts
index 81d092d9e..1f6558625 100644
--- a/src/config/paths.ts
+++ b/src/config/paths.ts
@@ -27,8 +27,9 @@ export function resolveStateDir(
   env: NodeJS.ProcessEnv = process.env,
   homedir: () => string = os.homedir,
 ): string {
-  const override = env.CLAWDBOT_STATE_DIR?.trim();
-  if (override) return override;
+  const override =
+    env.CLAWDBOT_STATE_DIR?.trim() || env.CLAWDIS_STATE_DIR?.trim();
+  if (override) return resolveUserPath(override);
   return path.join(homedir(), ".clawdbot");
 }
 
diff --git a/src/config/sessions.test.ts b/src/config/sessions.test.ts
index 599a5b57b..982c6e918 100644
--- a/src/config/sessions.test.ts
+++ b/src/config/sessions.test.ts
@@ -8,6 +8,7 @@ import {
   deriveSessionKey,
   loadSessionStore,
   resolveSessionKey,
+  resolveSessionTranscriptsDir,
   updateLastRoute,
 } from "./sessions.js";
 
@@ -127,4 +128,20 @@ describe("sessions", () => {
     expect(store.main?.lastChannel).toBe("telegram");
     expect(store.main?.lastTo).toBe("12345");
   });
+
+  it("derives session transcripts dir from CLAWDBOT_STATE_DIR", () => {
+    const dir = resolveSessionTranscriptsDir(
+      { CLAWDBOT_STATE_DIR: "/custom/state" } as NodeJS.ProcessEnv,
+      () => "/home/ignored",
+    );
+    expect(dir).toBe("/custom/state/sessions");
+  });
+
+  it("falls back to CLAWDIS_STATE_DIR for session transcripts dir", () => {
+    const dir = resolveSessionTranscriptsDir(
+      { CLAWDIS_STATE_DIR: "/legacy/state" } as NodeJS.ProcessEnv,
+      () => "/home/ignored",
+    );
+    expect(dir).toBe("/legacy/state/sessions");
+  });
 });
diff --git a/src/config/sessions.ts b/src/config/sessions.ts
index 3aa691832..e7ff6a2f5 100644
--- a/src/config/sessions.ts
+++ b/src/config/sessions.ts
@@ -7,6 +7,7 @@ import type { Skill } from "@mariozechner/pi-coding-agent";
 import JSON5 from "json5";
 import type { MsgContext } from "../auto-reply/templating.js";
 import { normalizeE164 } from "../utils.js";
+import { resolveStateDir } from "./paths.js";
 
 export type SessionScope = "per-sender" | "global";
 
@@ -84,8 +85,11 @@ export type SessionSkillSnapshot = {
   resolvedSkills?: Skill[];
 };
 
-export function resolveSessionTranscriptsDir(): string {
-  return path.join(os.homedir(), ".clawdbot", "sessions");
+export function resolveSessionTranscriptsDir(
+  env: NodeJS.ProcessEnv = process.env,
+  homedir: () => string = os.homedir,
+): string {
+  return path.join(resolveStateDir(env, homedir), "sessions");
 }
 
 export function resolveDefaultSessionStorePath(): string {