diff --git a/src/test/run-pass/generator/yield-subtype.rs b/src/test/run-pass/generator/yield-subtype.rs
index 268add4974b0..5ff070f311e0 100644
--- a/src/test/run-pass/generator/yield-subtype.rs
+++ b/src/test/run-pass/generator/yield-subtype.rs
@@ -14,10 +14,10 @@ fn bar<'a>() {
     let a: &'static str = "hi";
     let b: &'a str = a;
 
-	|| {
-		yield a;
-		yield b;
-	};
+    || {
+        yield a;
+        yield b;
+    };
 }
 
 fn main() {}
\ No newline at end of file