diff --git a/detect-indent/detect-indent-tests.d.ts b/detect-indent/detect-indent-tests.d.ts
new file mode 100644
index 000000000..d56854ae0
--- /dev/null
+++ b/detect-indent/detect-indent-tests.d.ts
@@ -0,0 +1,8 @@
+/// <reference path="detect-indent-tests.d.ts" />
+
+import di = require('detect-indent');
+
+var str: string;
+
+str = di(str);
+str = di(str, str);
diff --git a/detect-indent/detect-indent.d.ts b/detect-indent/detect-indent.d.ts
new file mode 100644
index 000000000..3ce72401d
--- /dev/null
+++ b/detect-indent/detect-indent.d.ts
@@ -0,0 +1,9 @@
+// Type definitions for detect-indent 0.1.3
+// Project: https://github.com/sindresorhus/detect-indent
+// Definitions by: Bart van der Schoor <https://github.com/Bartvds>
+// Definitions: https://github.com/borisyankov/DefinitelyTyped
+
+declare module 'detect-indent' {
+	function DetectIndent (dir: string, alt?: string): string;
+	export = DetectIndent;
+}