diff --git a/test/test_grudge_sym_old.py b/test/test_grudge_sym_old.py
index ca6c70d5ca938810f23f41bf8aef33a5bff18e1d..f211a316e65e66e61897f530549d3652c83c61b6 100644
--- a/test/test_grudge_sym_old.py
+++ b/test/test_grudge_sym_old.py
@@ -148,7 +148,7 @@ def test_mass_mat_trig(actx_factory, ambient_dim, discr_tag):
 
     num_integral_2 = np.dot(f_volm, actx.to_numpy(flatten(mass_op(f=ones_quad))))
     err_2 = abs(num_integral_2 - true_integral)
-    assert err_2 < 2e-9, err_2
+    assert err_2 < 5e-9, err_2
 
     if discr_tag is dof_desc.DISCR_TAG_BASE:
         # NOTE: `integral` always makes a square mass matrix and