diff --git a/clients/client-s3/package.json b/clients/client-s3/package.json
index 6b1eed8..56773ff 100644
--- a/clients/client-s3/package.json
+++ b/clients/client-s3/package.json
@@ -12,7 +12,8 @@
     "test": "yarn test:unit",
     "build:cjs": "tsc -p tsconfig.json",
     "build:es": "tsc -p tsconfig.es.json",
-    "build": "yarn build:cjs && yarn build:es",
+    "build:types": "tsc -p tsconfig.types.json",
+    "build": "yarn build:cjs && yarn build:es && yarn build:types",
     "downlevel-dts": "downlevel-dts dist-types dist-types/ts3.4"
   },
   "main": "./dist-cjs/index.js",
diff --git a/clients/client-s3/tsconfig.es.json b/clients/client-s3/tsconfig.es.json
index d67a49e..4c72364 100644
--- a/clients/client-s3/tsconfig.es.json
+++ b/clients/client-s3/tsconfig.es.json
@@ -4,8 +4,6 @@
     "target": "es5",
     "module": "esnext",
     "moduleResolution": "node",
-    "declaration": true,
-    "declarationDir": "dist-types",
     "lib": ["dom", "es5", "es2015.promise", "es2015.collection", "es2015.iterable", "es2015.symbol.wellknown"],
     "outDir": "dist-es"
   }
diff --git a/clients/client-s3/tsconfig.json b/clients/client-s3/tsconfig.json
index cd54095..04f8cc2 100644
--- a/clients/client-s3/tsconfig.json
+++ b/clients/client-s3/tsconfig.json
@@ -12,6 +12,7 @@
     "incremental": true,
     "resolveJsonModule": true,
     "esModuleInterop": true,
+    "removeComments": true,
     "outDir": "dist-cjs",
     "types": ["mocha", "node"]
   },
diff --git a/clients/client-s3/tsconfig.types.json b/clients/client-s3/tsconfig.types.json
new file mode 100644
index 0000000..d871f36
--- /dev/null
+++ b/clients/client-s3/tsconfig.types.json
@@ -0,0 +1,10 @@
+{
+  "compilerOptions": {
+    "rootDir": "./src",
+    "esModuleInterop": true,
+    "declaration": true,
+    "declarationDir": "dist-types",
+    "emitDeclarationOnly": true
+  },
+  "exclude": ["test/**/*", "src/**/*.spec.ts"]
+}