diff --git a/expect.js/expect.js.d.ts b/expect.js/expect.js.d.ts
index 64c5871b0..21bffb44a 100644
--- a/expect.js/expect.js.d.ts
+++ b/expect.js/expect.js.d.ts
@@ -17,7 +17,7 @@ declare module Expect {
          *
          * @param fn callback to match error string against
          */
-		throwError(fn?: (exception: any) => void): void;
+        throwError(fn?: (exception: any) => void): void;
 
         /**
          * Assert that the function throws.