diff --git a/tests/bullet/test_bullet_bam.py b/tests/bullet/test_bullet_bam.py
index e22aa57ba2..386e044f9f 100644
--- a/tests/bullet/test_bullet_bam.py
+++ b/tests/bullet/test_bullet_bam.py
@@ -117,7 +117,7 @@ def test_plane_shape():
     assert type(shape) is type(shape2)
     assert shape.margin == shape2.margin
     assert shape.name == shape2.name
-    assert shape.plane_normal == shape2.plane_normal
+    assert shape.plane_normal.almost_equal(shape2.plane_normal, 0.1)
     assert shape.plane_constant == shape2.plane_constant