diff --git a/types/webassembly-js-api/index.d.ts b/types/webassembly-js-api/index.d.ts
index 959e7c9ab5..30dec78a57 100644
--- a/types/webassembly-js-api/index.d.ts
+++ b/types/webassembly-js-api/index.d.ts
@@ -36,6 +36,20 @@ declare namespace WebAssembly {
         static imports(module: Module): Exports;
     }
 
+    /**
+     * WebAssembly.Global
+     */
+    interface GlobalDescriptor {
+        value: 'i32' | 'i64' | 'f32' | 'f64';
+        mutable?: boolean;
+    }
+
+    class Global {
+        value: number;
+        constructor(descriptor: GlobalDescriptor, value?: number);
+        valueOf(): number;
+    }
+
     /**
      * WebAssembly.Instance
      */
diff --git a/types/webassembly-js-api/tsconfig.json b/types/webassembly-js-api/tsconfig.json
index 286d2c0fb4..3688b77890 100644
--- a/types/webassembly-js-api/tsconfig.json
+++ b/types/webassembly-js-api/tsconfig.json
@@ -20,4 +20,4 @@
         "index.d.ts",
         "webassembly-js-api-tests.ts"
     ]
-}
\ No newline at end of file
+}
diff --git a/types/webassembly-js-api/webassembly-js-api-tests.ts b/types/webassembly-js-api/webassembly-js-api-tests.ts
index 78d5883e9d..f1ace9b575 100644
--- a/types/webassembly-js-api/webassembly-js-api-tests.ts
+++ b/types/webassembly-js-api/webassembly-js-api-tests.ts
@@ -36,6 +36,10 @@ debug(`wasmDataU8 is ${valid ? "" : "not "}a valid wasm wasmModule`);
 let wasmModule = new WebAssembly.Module(wasmDataU8);
 debug(`wasmModule=${wasmModule}`);
 
+// Global
+let wasmGlobal = new WebAssembly.Global({ value: 'i32', mutable: true }, 0);
+debug(`wasmGlobal=${wasmGlobal}`);
+
 // CustomSections
 let nameSections = WebAssembly.Module.customSections(wasmModule, "name");
 debug(`Module contains ${nameSections.length} name sections`);