diff --git a/types/gulp-diff/gulp-diff-tests.ts b/types/gulp-diff/gulp-diff-tests.ts
new file mode 100644
index 00000000000000..23748d11e805ee
--- /dev/null
+++ b/types/gulp-diff/gulp-diff-tests.ts
@@ -0,0 +1,8 @@
+import * as gulp from 'gulp';
+import * as diff from 'gulp-diff';
+
+gulp.task('task', () => {
+  return gulp.src('src')
+    .pipe(diff('dest'))
+    .pipe(diff.reporter({fail: true}));
+});
diff --git a/types/gulp-diff/index.d.ts b/types/gulp-diff/index.d.ts
new file mode 100644
index 00000000000000..482ea983911e12
--- /dev/null
+++ b/types/gulp-diff/index.d.ts
@@ -0,0 +1,32 @@
+// Type definitions for gulp-diff 1.0
+// Project: https://github.com/creativelive/gulp-diff
+// Definitions by: Ika <https://github.com/ikatyang>
+// Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
+
+/// <reference types="node" />
+
+import stream = require('stream');
+
+/**
+ * Gulp task to diff files in the stream against a destination.
+ * @param dest target directory to diff against, defaults to diff against original source file
+ */
+declare function gulp_diff(dest?: string): stream.Transform;
+
+declare namespace gulp_diff {
+  const diff: typeof gulp_diff;
+
+  function reporter(opts?: ReporterOptions): stream.Transform;
+  interface ReporterOptions {
+    /**
+     * do not show diff information, defaults to `false`
+     */
+    quiet?: boolean;
+    /**
+     * emit an error on finding diffs, defaults to `false`
+     */
+    fail?: boolean;
+  }
+}
+
+export = gulp_diff;
diff --git a/types/gulp-diff/tsconfig.json b/types/gulp-diff/tsconfig.json
new file mode 100644
index 00000000000000..fd166337b24918
--- /dev/null
+++ b/types/gulp-diff/tsconfig.json
@@ -0,0 +1,18 @@
+{
+  "compilerOptions": {
+    "module": "commonjs",
+    "lib": ["es6"],
+    "noImplicitAny": true,
+    "noImplicitThis": true,
+    "strictNullChecks": true,
+    "baseUrl": "../",
+    "typeRoots": ["../"],
+    "types": [],
+    "noEmit": true,
+    "forceConsistentCasingInFileNames": true
+  },
+  "files": [
+    "index.d.ts",
+    "gulp-diff-tests.ts"
+  ]
+}
diff --git a/types/gulp-diff/tslint.json b/types/gulp-diff/tslint.json
new file mode 100644
index 00000000000000..d88586e5bd00db
--- /dev/null
+++ b/types/gulp-diff/tslint.json
@@ -0,0 +1,3 @@
+{
+  "extends": "dtslint/dt.json"
+}