diff --git a/src/mesh.jl b/src/mesh.jl
index bd3eb64d7ef4ebec30a3713e1446d8faf656f2e2..fc82db5c8a3d988845e83078548aaa0bb6dd4972 100644
--- a/src/mesh.jl
+++ b/src/mesh.jl
@@ -412,7 +412,7 @@ function inradius(mesh, cell)
     return sqrt((s - a) * (s - b) * (s - c) / s)
 end
 
-function norm_gradient(mesh, cell)
+function norm_gradient(mesh)
     min_inradius = mapreduce(cell -> inradius(mesh, cell), min, cells(mesh))
     return 2 * sqrt(6) / (2 * min_inradius)
 end