diff --git a/tests/feeds_fetcher_http.test b/tests/feeds_fetcher_http.test
index a27ff52..f59efa7 100644
--- a/tests/feeds_fetcher_http.test
+++ b/tests/feeds_fetcher_http.test
@@ -162,6 +162,7 @@ class FeedsFileHTTPTestCase extends FeedsWebTestCase {
     $csv = file_get_contents($file_url);
     $lines = explode("\n", $csv);
     $lines[3] = '"Nam liber tempor","CHANGED IN CACHED FILE",1151766000,1';
+    $csv = implode("\n", $lines);
     $this->verbose('<pre>' . $csv . '</pre>');
     file_put_contents($file_url, $csv);