diff --git a/test/python_unit/geometric_shapes.py b/test/python_unit/geometric_shapes.py
index 1edfa38cf..0b4d52a27 100644
--- a/test/python_unit/geometric_shapes.py
+++ b/test/python_unit/geometric_shapes.py
@@ -179,8 +179,8 @@ def test_convex(self):
             hppfcl.Convex.convexHull(verts, False, None)
             qhullAvailable = True
         except Exception as e:
-            self.assertEqual(
-                str(e), "Library built without qhull. Cannot build object of this type."
+            self.assertIn(
+                "Library built without qhull. Cannot build object of this type.", str(e)
             )
             qhullAvailable = False