diff --git a/create_dataset.py b/create_dataset.py
index ec3187a..d63888d 100644
--- a/create_dataset.py
+++ b/create_dataset.py
@@ -1,6 +1,7 @@
 import os
 from dataclasses import dataclass
 from enum import Enum
+from itertools import chain
 from multiprocessing import Pool, cpu_count, freeze_support
 from pathlib import Path
 from typing import TYPE_CHECKING, Optional
@@ -248,9 +249,7 @@ def hrlr_pair(path: Path) -> tuple[Path, Path | None]:
     s.next("Gathering images...")
     available_extensions: list[str] = extensions.split(",")
     s.print(f"Searching extensions: {available_extensions}")
-    file_list: Generator[Path, None, None] = get_file_list(
-        *[input_folder / "**" / f"*.{ext}" for ext in available_extensions]
-    )
+    file_list: Generator[Path, None, None] = get_file_list(input_folder, *(f"*.{ext}" for ext in available_extensions))
     image_list: list[Path] = [x.relative_to(input_folder) for x in sorted(file_list)]
     if limit and limit == LimitModes.BEFORE:
         image_list = image_list[:limit]
@@ -260,7 +259,7 @@ def hrlr_pair(path: Path) -> tuple[Path, Path | None]:
     # * Purge existing images
     if purge_all:
         # This could be cleaner
-        to_delete: set[Path] = set(get_file_list(hr_folder / "**" / "*", lr_folder / "**" / "*"))
+        to_delete = set(chain(get_file_list(hr_folder, "*"), get_file_list(lr_folder, "*")))
         if to_delete:
             s.next("Purging...")
             for file in ipbar(to_delete, total=len(to_delete)):
diff --git a/src/datafilters/dataset_builder.py b/src/datafilters/dataset_builder.py
index 047cc57..22aeca0 100644
--- a/src/datafilters/dataset_builder.py
+++ b/src/datafilters/dataset_builder.py
@@ -106,7 +106,7 @@ def populate_df(
 
         from_full_to_relative: dict[str, Path] = self.get_absolutes(lst)
         if new_paths := set(from_full_to_relative) - set(self.df.get_column("path")):
-            self.df = pl.concat((self.df, DataFrame({"path": new_paths})), how="diagonal")
+            self.df = pl.concat((self.df, DataFrame({"path": list(new_paths)})), how="diagonal")
 
         for filter_ in self.filters:
             filter_.filedict = from_full_to_relative
diff --git a/util/file_list.py b/util/file_list.py
index 8b451bc..a24fbf4 100644
--- a/util/file_list.py
+++ b/util/file_list.py
@@ -1,15 +1,14 @@
-from pathlib import Path
-from glob import glob
-from os import sep
 from collections.abc import Generator
+from os import sep
+from pathlib import Path
 
 
-def get_file_list(*folders: Path) -> Generator[Path, None, None]:
+def get_file_list(folder, *patterns: str) -> Generator[Path, None, None]:
     """
     Args    folders: One or more folder paths.
     Returns list[Path]: paths in the specified folders."""
 
-    return (Path(y) for x in (glob(str(p), recursive=True) for p in folders) for y in x)
+    return (y for pattern in patterns for y in folder.rglob(pattern))
 
 
 def to_recursive(path: Path, recursive: bool = False, replace_spaces: bool = False) -> Path: