diff --git a/test/harness/sth.js b/test/harness/sth.js
index d100e160da..0b811ed2a2 100644
--- a/test/harness/sth.js
+++ b/test/harness/sth.js
@@ -92,7 +92,7 @@ function BrowserRunner() {
     }
 
     function isAsyncTest(code) {
-        return /\$DONE()/.test(code));
+        return /\$DONE()/.test(code);
     }
 
     /* Run the test. */