diff --git a/test/test_integration.py b/test/test_integration.py
index ce7d7ceab..925a4c543 100644
--- a/test/test_integration.py
+++ b/test/test_integration.py
@@ -1677,8 +1677,7 @@ def update_output(start_date, end_date):
             set(itertools.chain(*[
                 _.split('-')
                 for _ in self.driver.find_element_by_css_selector(
-                    '#date-picker-range-output').text.split(' - ')])
-            ),
+                    '#date-picker-range-output').text.split(' - ')])),
             date_tokens,
             "date should match the callback output")