diff --git a/src/utils.ts b/src/utils.ts
index 2f7a3349..dbd9df8d 100644
--- a/src/utils.ts
+++ b/src/utils.ts
@@ -113,6 +113,11 @@ function interopDefault(mod: any): any {
   const defIsNil = def === null || def === undefined;
   const defIsObj = defType === "object" || defType === "function";
 
+  if (defIsNil && mod instanceof Promise) {
+    // Hotfix for #388
+    return mod;
+  }
+
   return new Proxy(mod, {
     get(target, prop, receiver) {
       if (prop === "__esModule") {
diff --git a/test/__snapshots__/fixtures.test.ts.snap b/test/__snapshots__/fixtures.test.ts.snap
index 22cf118b..ca4579d5 100644
--- a/test/__snapshots__/fixtures.test.ts.snap
+++ b/test/__snapshots__/fixtures.test.ts.snap
@@ -127,5 +127,6 @@ Decorator called with 1 arguments.
     normalizeUserEntity: [Function: normalizeUserEntity]
   }
 }
-child"
+child
+promise resolved"
 `;
diff --git a/test/fixtures.test.ts b/test/fixtures.test.ts
index 07652f61..546dac0b 100644
--- a/test/fixtures.test.ts
+++ b/test/fixtures.test.ts
@@ -47,6 +47,7 @@ describe("fixtures", async () => {
             )
             .replace("internal/errors:496", "events:276")
             .replace("    ^", "  ^")
+            .replace(/ExperimentalWarning: CommonJS module/, "")
             // eslint-disable-next-line no-control-regex
             .replace(/\u001B\[[\d;]*m/gu, "")
             .trim()
diff --git a/test/fixtures/typescript/def-promise.cts b/test/fixtures/typescript/def-promise.cts
new file mode 100644
index 00000000..41019023
--- /dev/null
+++ b/test/fixtures/typescript/def-promise.cts
@@ -0,0 +1,2 @@
+// https://github.com/unjs/jiti/issues/388
+export = Promise.resolve("promise resolved");
diff --git a/test/fixtures/typescript/index.ts b/test/fixtures/typescript/index.ts
index 66f44a8a..029c4269 100644
--- a/test/fixtures/typescript/index.ts
+++ b/test/fixtures/typescript/index.ts
@@ -2,9 +2,12 @@ import test, { type FeedService as _FeedService } from "./test";
 import Clazz from "./decorators";
 import { test as satisfiesTest } from "./satisfies";
 import { child } from "./parent.mjs";
+// @ts-expect-error (needs allowImportingTsExtensions)
+import defPromise from "./def-promise.cts";
 
 export type { Test } from "./types";
 
 console.log(test(), Clazz);
 console.log(satisfiesTest());
 console.log(child());
+console.log(await defPromise);