diff --git a/tests/io/test_openff.py b/tests/io/test_openff.py
index 2152b3e955e..8d48f686fd9 100644
--- a/tests/io/test_openff.py
+++ b/tests/io/test_openff.py
@@ -23,6 +23,7 @@
 TEST_DIR = f"{TEST_FILES_DIR}/io/openff/classical_md_mols"
 
 tk = pytest.importorskip("openff.toolkit")
+pybel = pytest.importorskip("openbabel.pybel")
 
 
 @pytest.fixture()