diff --git a/pythonbpf/codegen.py b/pythonbpf/codegen.py
index cf20f06..1c9b9dd 100644
--- a/pythonbpf/codegen.py
+++ b/pythonbpf/codegen.py
@@ -1,7 +1,7 @@
 import ast
 from llvmlite import ir
 from .license_pass import license_processing
-from .functions_pass import func_proc
+from .functions import func_proc
 from .maps import maps_proc
 from .structs import structs_proc
 from .globals_pass import globals_processing
diff --git a/pythonbpf/functions/__init__.py b/pythonbpf/functions/__init__.py
new file mode 100644
index 0000000..df99da1
--- /dev/null
+++ b/pythonbpf/functions/__init__.py
@@ -0,0 +1,3 @@
+from .functions_pass import func_proc
+
+__all__ = ["func_proc"]
diff --git a/pythonbpf/functions_pass.py b/pythonbpf/functions/functions_pass.py
similarity index 99%
rename from pythonbpf/functions_pass.py
rename to pythonbpf/functions/functions_pass.py
index d1ea526..7766a9d 100644
--- a/pythonbpf/functions_pass.py
+++ b/pythonbpf/functions/functions_pass.py
@@ -4,10 +4,10 @@ import logging
 from typing import Any
 from dataclasses import dataclass
 
-from .helper import HelperHandlerRegistry, handle_helper_call
-from .type_deducer import ctypes_to_ir
-from .binary_ops import handle_binary_op
-from .expr_pass import eval_expr, handle_expr
+from pythonbpf.helper import HelperHandlerRegistry, handle_helper_call
+from pythonbpf.type_deducer import ctypes_to_ir
+from pythonbpf.binary_ops import handle_binary_op
+from pythonbpf.expr_pass import eval_expr, handle_expr
 
 logger = logging.getLogger(__name__)