diff --git a/rapidchecker/cli.py b/rapidchecker/cli.py
index 1ae780a..0ddb82b 100644
--- a/rapidchecker/cli.py
+++ b/rapidchecker/cli.py
@@ -1,4 +1,5 @@
 import sys
+from pathlib import Path
 
 import click
 from pyparsing import ParseBaseException
@@ -7,12 +8,12 @@
 from rapidchecker.whitespace_checks import WhiteSpaceError
 
 from .check import check_format
-from .io import get_sys_files, read_sys_file
 from .whitespace_checks import check_whitespace
 
 
-def in_ignore_list(path: str, ignore_list: list[str]) -> bool:
-    return any(item in path for item in ignore_list)
+def read_sys_file(path: str | Path) -> str:
+    with Path(path).open() as f:
+        return f.read()
 
 
 def check_file(file_contents: str) -> list[ParseBaseException | WhiteSpaceError]:
diff --git a/rapidchecker/io.py b/rapidchecker/io.py
deleted file mode 100644
index f0c10f1..0000000
--- a/rapidchecker/io.py
+++ /dev/null
@@ -1,14 +0,0 @@
-from collections.abc import Iterable
-from pathlib import Path
-
-
-def get_sys_files(path: str | Path) -> Iterable[Path]:
-    path = Path(path)
-    if path.suffix == ".sys":
-        return [path]
-    return path.glob("**/*.sys")
-
-
-def read_sys_file(path: str | Path) -> str:
-    with Path(path).open() as f:
-        return f.read()
diff --git a/uv.lock b/uv.lock
index 123d44a..22e8238 100644
--- a/uv.lock
+++ b/uv.lock
@@ -286,7 +286,7 @@ wheels = [
 
 [[package]]
 name = "rapidchecker"
-version = "0.1.2"
+version = "0.1.3"
 source = { virtual = "." }
 dependencies = [
     { name = "click" },