diff --git a/openmc/lib/__init__.py b/openmc/lib/__init__.py
index 9bb2efb38af..a6c7d447118 100644
--- a/openmc/lib/__init__.py
+++ b/openmc/lib/__init__.py
@@ -13,20 +13,12 @@
 """
 
 from ctypes import CDLL, c_bool, c_int
-import importlib.resources
 import os
-import sys
 
 
-# Determine shared-library suffix
-if sys.platform == 'darwin':
-    _suffix = 'dylib'
-else:
-    _suffix = 'so'
-
 if os.environ.get('READTHEDOCS', None) != 'True':
-    # Open shared library
-    _filename = importlib.resources.files(__name__) / f'libopenmc.{_suffix}'
+    import openmc
+    _filename = openmc.lib[0]
     _dll = CDLL(str(_filename))  # TODO: Remove str() when Python 3.12+
 else:
     # For documentation builds, we don't actually have the shared library