diff --git a/tests/integration/test_epi.py b/tests/integration/test_epi.py
index edf223b507bd488e7f38f4c7ba6b5dd60cc7538a..fc8e8ac573310ccb5993b4f13fc2fda92c1b97c7 100644
--- a/tests/integration/test_epi.py
+++ b/tests/integration/test_epi.py
@@ -21,8 +21,8 @@ class TestEpi(unittest.TestCase):
     @staticmethod
     def write_temp_run_config_files():
         nowstring: str = IntegrationTestUtils.get_now_string()
-        # prefix: str = "temp_epi_" + nowstring
-        prefix: str = "temp_epi_2022-11-23_164339"
+        prefix: str = "temp_epi_" + nowstring
+        # prefix: str = "temp_epi_2022-11-23_164339"
         # prefix: str = ""
 
         default_config = IntegrationTestUtils.DEFAULT_CONFIG_FILE_PATH