diff --git a/types/index.d.ts b/types/index.d.ts
index ed75e96..4901e7b 100644
--- a/types/index.d.ts
+++ b/types/index.d.ts
@@ -110,6 +110,7 @@ declare namespace Config {
     devtoolFallbackModuleFilenameTemplate(value: any): this;
     devtoolLineToLine(value: any): this;
     devtoolModuleFilenameTemplate(value: any): this;
+    globalObject(value: string): this;
     hashFunction(value: string): this;
     hashDigest(value: string): this;
     hashDigestLength(value: number): this;
diff --git a/types/test/webpack-chain-tests.ts b/types/test/webpack-chain-tests.ts
index bba8e14..3d37321 100644
--- a/types/test/webpack-chain-tests.ts
+++ b/types/test/webpack-chain-tests.ts
@@ -63,6 +63,7 @@ config
     .devtoolLineToLine('')
     .devtoolModuleFilenameTemplate('')
     .filename('main.js')
+    .globalObject('global')
     .hashFunction('md5')
     .hashDigest('md5')
     .hashDigestLength(15)