diff --git a/test_runner.py b/test_runner.py
index 35539225b..5992f113a 100644
--- a/test_runner.py
+++ b/test_runner.py
@@ -21,12 +21,14 @@
 
 
 # Windows doesn't like / in paths, so we need to convert to \
+# If we're on Windows, convert to Windows path,
+# and if we're not on Windows, just return the path.
 def convert_to_windows_path(path: Path) -> Path:
-    # If we're on Windows, convert to Windows path, and if we're not on Windows, just return the path.
     if path.is_absolute() and path.drive:
         return Path(path.drive + path.as_posix().replace("/", "\\"))
     return path
 
+
 BANDERSNATCH_EXE = Path(
     which("bandersnatch") or which("bandersnatch.exe") or "bandersnatch"
 )