diff --git a/camelcase/camelcase-tests.ts b/camelcase/camelcase-tests.ts
new file mode 100644
index 0000000000..bb2ce92827
--- /dev/null
+++ b/camelcase/camelcase-tests.ts
@@ -0,0 +1,12 @@
+/// <reference path="./camelcase.d.ts" />
+
+import camelCase from 'camelcase';
+
+camelCase('foo-bar');
+camelCase('foo_bar');
+camelCase('Foo-Bar');
+camelCase('--foo.bar');
+camelCase('__foo__bar__');
+camelCase('foo bar');
+camelCase('foo', 'bar');
+camelCase('__foo__', '--bar');
diff --git a/camelcase/camelcase.d.ts b/camelcase/camelcase.d.ts
new file mode 100644
index 0000000000..c13eab8a5a
--- /dev/null
+++ b/camelcase/camelcase.d.ts
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+// Type definitions for camelcase
+// Project: https://github.com/sindresorhus/camelcase
+// Definitions by: Sam Verschueren <https://github.com/samverschueren>
+// Definitions: https://github.com/borisyankov/DefinitelyTyped
+
+declare module "camelcase" {
+	export default function camelcase(...args: string[]): string;
+}