diff --git a/tests/test_selectors.py b/tests/test_selectors.py
index 4bddb8ba..464587d2 100644
--- a/tests/test_selectors.py
+++ b/tests/test_selectors.py
@@ -505,6 +505,7 @@ class TestCQSelectors(BaseTest):
             "+X ",
             "-Y",
             "|(1,0,0)",
+            "|(-1, -0.1 , 2. )",
             "#(1.,1.4114,-0.532)",
             "%Plane",
             ">XZ",