diff --git a/packages/tools/package.json b/packages/tools/package.json
index 2d5e270c..053089e5 100644
--- a/packages/tools/package.json
+++ b/packages/tools/package.json
@@ -51,8 +51,8 @@
     "./ai-sdk": "./dist/ai-sdk.js",
     "./claude-memory": "./dist/claude-memory.js",
     "./mastra": "./dist/mastra.js",
-    "./openai\\index": "./dist/openai\\index.js",
-    "./voltagent\\index": "./dist/voltagent\\index.js",
+    "./openai": "./dist/openai/index.js",
+    "./voltagent": "./dist/voltagent/index.js",
     "./package.json": "./package.json"
   },
   "repository": {
diff --git a/packages/tools/tsdown.config.ts b/packages/tools/tsdown.config.ts
index 139dd7df..b0de5b7c 100644
--- a/packages/tools/tsdown.config.ts
+++ b/packages/tools/tsdown.config.ts
@@ -18,6 +18,8 @@ export default defineConfig({
 	dts: {
 		sourcemap: false,
 	},
-	exports: true,
+	// exports are hand-maintained in package.json: tsdown's generator emits
+	// native path separators, producing broken "./openai\\index" on Windows.
+	exports: false,
 	unbundle: true,
 })