diff --git a/nerfstudio/process_data/process_data_utils.py b/nerfstudio/process_data/process_data_utils.py
index 91132fe4a..40381b217 100644
--- a/nerfstudio/process_data/process_data_utils.py
+++ b/nerfstudio/process_data/process_data_utils.py
@@ -68,8 +68,8 @@ def list_images(data: Path, recursive: bool = False) -> List[Path]:
         Paths to images contained in the directory
     """
     allowed_exts = [".jpg", ".jpeg", ".png", ".tif", ".tiff"] + ALLOWED_RAW_EXTS
-    glob = "**/[!.]*" if recursive else "[!.]*"
-    image_paths = sorted([p for p in data.glob(glob) if p.suffix.lower() in allowed_exts])
+    glob_str = "**/[!.]*" if recursive else "[!.]*"
+    image_paths = sorted([p for p in data.glob(glob_str) if p.suffix.lower() in allowed_exts])
     return image_paths