diff --git a/src/Poisson.py b/src/Poisson.py
index 120a161..e1bc2d3 100644
--- a/src/Poisson.py
+++ b/src/Poisson.py
@@ -14,7 +14,7 @@
 forms = []
 for degree in range(1, 4):
     element = basix.ufl.element("Lagrange", "tetrahedron", degree)
-    domain = Mesh(basix.ufl.element("Lagrange", "tetrahedron", degree, shape=(3,)))
+    domain = Mesh(basix.ufl.element("Lagrange", "tetrahedron", 1, shape=(3,)))
     space = FunctionSpace(domain, element)
 
     u = TrialFunction(space)