diff --git a/mdgo/forcefield/__init__.py b/mdgo/forcefield/__init__.py
index 8ae75669..8b04775c 100644
--- a/mdgo/forcefield/__init__.py
+++ b/mdgo/forcefield/__init__.py
@@ -18,4 +18,4 @@
 from .charge import ChargeWriter
 from .maestro import MaestroRunner
 from .pubchem import PubChemRunner
-from .ligpargen import LigpargenRunner, FFcrawler
+from .mdgoligpargen import LigpargenRunner, FFcrawler
diff --git a/mdgo/forcefield/ligpargen.py b/mdgo/forcefield/mdgoligpargen.py
similarity index 99%
rename from mdgo/forcefield/ligpargen.py
rename to mdgo/forcefield/mdgoligpargen.py
index 8b0474f1..33b43f60 100644
--- a/mdgo/forcefield/ligpargen.py
+++ b/mdgo/forcefield/mdgoligpargen.py
@@ -14,7 +14,6 @@
 """
 
 import os
-import subprocess
 import shutil
 import time
 from typing import Optional
diff --git a/tests/test_forcefield.py b/tests/test_forcefield.py
index 71618768..709b0fea 100644
--- a/tests/test_forcefield.py
+++ b/tests/test_forcefield.py
@@ -7,7 +7,7 @@
 import numpy as np
 import pytest
 
-from mdgo.forcefield.ligpargen import *
+from mdgo.forcefield.mdgoligpargen import *
 from mdgo.forcefield.aqueous import *
 
 test_dir = os.path.join(os.path.dirname(os.path.abspath(__file__)), "test_files")