diff --git a/test/test_layer_pot_identity.py b/test/test_layer_pot_identity.py
index 6168ae249f712211fd6b7c5e7984edc91165dd62..fa8b7a8f88fe91c647dfb11b8867ec1fb02e7b49 100644
--- a/test/test_layer_pot_identity.py
+++ b/test/test_layer_pot_identity.py
@@ -166,7 +166,7 @@ class ZeroCalderonExpr(object):
 
         return (
                     -Dp(kernel, S(kernel, u_sym))
-                    - 0.25*u_sym + Sp(kernel, sym.Sp(kernel, u_sym))
+                    - 0.25*u_sym + Sp(kernel, Sp(kernel, u_sym))
                     )
 
     order_drop = 1
diff --git a/test/test_tools.py b/test/test_tools.py
index af7740953a36088b77011aeef70e174d4f36cebf..bf40f5f9224aae2ab6ea72945cc0e86c2c0b64d8 100644
--- a/test/test_tools.py
+++ b/test/test_tools.py
@@ -66,7 +66,8 @@ def test_interpolatory_error_reporting(ctx_factory):
     from meshmode.mesh.io import generate_gmsh, FileSource
     mesh = generate_gmsh(
             FileSource("circle.step"), 2, order=4, force_ambient_dim=2,
-            other_options=["-string", "Mesh.CharacteristicLengthMax = %g;" % h]
+            other_options=["-string", "Mesh.CharacteristicLengthMax = %g;" % h],
+            target_unit="mm",
             )
 
     logger.info("%d elements" % mesh.nelements)