diff --git a/smithy-typescript-codegen/src/main/resources/software/amazon/smithy/typescript/codegen/base-package.json b/smithy-typescript-codegen/src/main/resources/software/amazon/smithy/typescript/codegen/base-package.json
index eec31da70ee..dd204a619cc 100644
--- a/smithy-typescript-codegen/src/main/resources/software/amazon/smithy/typescript/codegen/base-package.json
+++ b/smithy-typescript-codegen/src/main/resources/software/amazon/smithy/typescript/codegen/base-package.json
@@ -13,10 +13,10 @@
     "build:cjs": "tsc -p tsconfig.json",
     "build:es": "tsc -p tsconfig.es.json",
     "build": "yarn build:cjs && yarn build:es",
-    "postbuild": "downlevel-dts types types/ts3.4"
+    "postbuild": "downlevel-dts dist/types dist/types/ts3.4"
   },
   "main": "./dist/cjs/index.js",
-  "types": "./types/index.d.ts",
+  "types": "./dist/types/index.d.ts",
   "module": "./dist/es/index.js",
   "browser": {
     "./runtimeConfig": "./runtimeConfig.browser"
diff --git a/smithy-typescript-codegen/src/main/resources/software/amazon/smithy/typescript/codegen/tsconfig.json b/smithy-typescript-codegen/src/main/resources/software/amazon/smithy/typescript/codegen/tsconfig.json
index 4cf936f614b..25b5401940b 100644
--- a/smithy-typescript-codegen/src/main/resources/software/amazon/smithy/typescript/codegen/tsconfig.json
+++ b/smithy-typescript-codegen/src/main/resources/software/amazon/smithy/typescript/codegen/tsconfig.json
@@ -12,11 +12,17 @@
     "incremental": true,
     "resolveJsonModule": true,
     "esModuleInterop": true,
-    "declarationDir": "./types",
+    "declarationDir": "dist/types",
     "outDir": "dist/cjs"
   },
   "typedocOptions": {
-    "exclude": ["**/node_modules/**", "**/*.spec.ts", "./protocols/*.ts", "./e2e/*.ts", "./endpoints.ts"],
+    "exclude": [
+      "**/node_modules/**",
+      "**/*.spec.ts",
+      "./protocols/*.ts",
+      "./e2e/*.ts",
+      "./endpoints.ts"
+    ],
     "excludeNotExported": true,
     "excludePrivate": true,
     "hideGenerator": true,