diff --git a/report/report.py b/report/report.py
index 57e73a80..e49a1bda 100644
--- a/report/report.py
+++ b/report/report.py
@@ -99,6 +99,8 @@ def run(self):
                 ["mail", "-s", subject, self.mail_address], stdin=p1.stdout
             )
         else:
-            out = subprocess.run(["mail", "-s", subject, self.mail_address], input="", check=True)
+            out = subprocess.run(
+                ["mail", "-s", subject, self.mail_address], input="", check=True
+            )
             value = out.returncode
         self.out_status.set(value)