diff --git a/fixtures/file b/fixtures/file
index 9824d5b..99df774 100644
--- a/fixtures/file
+++ b/fixtures/file
@@ -101,3 +101,5 @@ https://hooks.slack.com/services/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
 
 doi:10.1392/BC1.0
 10.1000/123
+
+a80122b2565c3e26a61cbf58d1d1aad7-us5
diff --git a/tests/test_click.py b/tests/test_click.py
index 15779ba..cdaf5ec 100644
--- a/tests/test_click.py
+++ b/tests/test_click.py
@@ -357,6 +357,13 @@ def test_file_fixture_doi():
     assert re.findall("DOI", str(result.output))
 
 
+def test_file_fixture_mailchimp():
+    runner = CliRunner()
+    result = runner.invoke(main, ["-db", "fixtures/file"])
+    assert result.exit_code == 0
+    assert re.findall("Mailchimp", str(result.output))
+
+
 def test_file_cors():
     runner = CliRunner()
     result = runner.invoke(main, ["-db", "Access-Control-Allow: *"])