diff --git a/tests/test_copy_from_repo.py b/tests/test_copy_from_repo.py
index afc9af9..5e663c9 100644
--- a/tests/test_copy_from_repo.py
+++ b/tests/test_copy_from_repo.py
@@ -6,10 +6,12 @@
 from .images import LEAP_URL
 
 
+_FNAME = "pyproject.toml"
+
 LEAP_WITH_CONFIG_FILE = DerivedContainer(
     base=LEAP_URL,
-    containerfile="""WORKDIR /opt/app/
-COPY pyproject.toml /opt/app/pyproject.toml""",
+    containerfile=f"""WORKDIR /opt/app/
+COPY {_FNAME} /opt/app/{_FNAME}""",
 )
 
 CONTAINER_IMAGES = [LEAP_WITH_CONFIG_FILE]
@@ -18,10 +20,8 @@
 def test_config_file_present(
     auto_container: ContainerData, pytestconfig: Config
 ):
-    assert auto_container.connection.file("/opt/app/pyproject.toml").exists
-    with open(
-        pytestconfig.rootpath / "pyproject.toml", encoding="utf-8"
-    ) as pyproject:
+    assert auto_container.connection.file(f"/opt/app/{_FNAME}").exists
+    with open(pytestconfig.rootpath / _FNAME, encoding="utf-8") as pyproject:
         assert auto_container.connection.file(
-            "/opt/app/pyproject.toml"
+            f"/opt/app/{_FNAME}"
         ).content_string == pyproject.read(-1)