diff --git a/nox/tox_to_nox.py b/nox/tox_to_nox.py
index 7f4b91c6..0327a9c4 100644
--- a/nox/tox_to_nox.py
+++ b/nox/tox_to_nox.py
@@ -120,7 +120,9 @@ def main() -> None:
                 [
                     part
                     for dep in section["deps"].strip().splitlines()
-                    for part in (dep.split() if dep.startswith("-r") else [dep])
+                    for part in (
+                        [dep[:2] + dep[3:]] if dep.startswith("-r ") else [dep]
+                    )
                 ]
             )
 
@@ -139,7 +141,7 @@ def main() -> None:
                 )
                 config[name]["base_python"] = impl + section["py_dot_ver"]
 
-            change_dir = Path(section.get("change_dir", "."))
+            change_dir = Path(section.get("change_dir", ""))
             rel_to_cwd = change_dir.relative_to(Path.cwd())
             if str(rel_to_cwd) == ".":
                 config[name]["change_dir"] = None
diff --git a/tests/test_tox_to_nox.py b/tests/test_tox_to_nox.py
index b23c114b..9b585788 100644
--- a/tests/test_tox_to_nox.py
+++ b/tests/test_tox_to_nox.py
@@ -366,7 +366,7 @@ def test_commands_with_requirements(makeconfig: Callable[[str], str]) -> None:
         envlist = aiohttp
 
         [testenv]
-        use_develop = true
+        usedevelop = true
         deps =
             pytest
             pytest-cov
@@ -382,7 +382,7 @@ def test_commands_with_requirements(makeconfig: Callable[[str], str]) -> None:
 
     @nox.session(python='python3.13')
     def aiohttp(session):
-        session.install('pytest', 'pytest-cov', '-r', 'requirements/aiohttp.txt')
+        session.install('pytest', 'pytest-cov', '-rrequirements/aiohttp.txt')
         session.install('-e', '.')
     """).lstrip()
     )