diff --git a/test/integration/duplicate-entries-partial-specified/index.test.ts b/test/integration/duplicate-entries-partial-specified/index.test.ts
new file mode 100644
index 00000000..8d983f12
--- /dev/null
+++ b/test/integration/duplicate-entries-partial-specified/index.test.ts
@@ -0,0 +1,17 @@
+import { createIntegrationTest, getFileNamesFromDirectory } from '../utils'
+
+describe('integration duplicate-entries-partial-specified', () => {
+  it('should not generate js types paths if not specified', async () => {
+    await createIntegrationTest(
+      {
+        directory: __dirname,
+      },
+      async ({ distDir }) => {
+        expect(await getFileNamesFromDirectory(distDir)).toEqual([
+          'a.js',
+          'a.workerd.js',
+        ])
+      },
+    )
+  })
+})
diff --git a/test/integration/duplicate-entries-partial-specified/package.json b/test/integration/duplicate-entries-partial-specified/package.json
new file mode 100644
index 00000000..36620395
--- /dev/null
+++ b/test/integration/duplicate-entries-partial-specified/package.json
@@ -0,0 +1,10 @@
+{
+  "name": "undefined-types-paths",
+  "type": "module",
+  "exports": {
+    "./a": {
+      "workerd": "./dist/a.workerd.js",
+      "import": "./dist/a.js"
+    }
+  }
+}
diff --git a/test/integration/duplicate-entries-partial-specified/src/a.ts b/test/integration/duplicate-entries-partial-specified/src/a.ts
new file mode 100644
index 00000000..9c2840e2
--- /dev/null
+++ b/test/integration/duplicate-entries-partial-specified/src/a.ts
@@ -0,0 +1 @@
+export { internal } from './a/shared'
diff --git a/test/integration/duplicate-entries-partial-specified/src/a.workerd.ts b/test/integration/duplicate-entries-partial-specified/src/a.workerd.ts
new file mode 100644
index 00000000..9c2840e2
--- /dev/null
+++ b/test/integration/duplicate-entries-partial-specified/src/a.workerd.ts
@@ -0,0 +1 @@
+export { internal } from './a/shared'
diff --git a/test/integration/duplicate-entries-partial-specified/src/a/shared.ts b/test/integration/duplicate-entries-partial-specified/src/a/shared.ts
new file mode 100644
index 00000000..b13d8e9f
--- /dev/null
+++ b/test/integration/duplicate-entries-partial-specified/src/a/shared.ts
@@ -0,0 +1 @@
+export const internal = 'a'