diff --git a/tests/softhsm_setup.py b/tests/softhsm_setup.py
index 86c613cb..7b9417f4 100644
--- a/tests/softhsm_setup.py
+++ b/tests/softhsm_setup.py
@@ -123,18 +123,22 @@ def setup() -> None:
         with open(softhsm_conf, 'w') as f:
             if softhsm_version == 2:
                 softhsm_db = _temp_dir()
-                f.write(f"""
+                f.write(
+                    f"""
 # Generated by test
 directories.tokendir = {softhsm_db}
 objectstore.backend = file
 log.level = DEBUG
-""")
+"""
+                )
             else:
                 softhsm_db = _temp_file()
-                f.write(f"""
+                f.write(
+                    f"""
 # Generated by test
 0:{softhsm_db}
-""")
+"""
+                )
 
         logging.debug('Initializing the token')
         out, err = run_cmd(