diff --git a/src/materials/element_wise_scalar_diffusion.jl b/src/materials/element_wise_scalar_diffusion.jl
index 5dc01cb..ddff8ef 100644
--- a/src/materials/element_wise_scalar_diffusion.jl
+++ b/src/materials/element_wise_scalar_diffusion.jl
@@ -19,7 +19,7 @@ here.
 ```julia
 # Two bricks along x with different K; λ_by_elem[i] is conductivity of element i.
 mat = ElementWiseScalarDiffusion([1.0, 4.0])
-kernel = HeatKernel(ContinuumFormulation{FullThreeD}(), mat, PressurePotential())
+kernel = HeatKernel(ContinuumFormulation{ThreeDimensional}(), mat, PressurePotential())
 ```
 """
 
diff --git a/src/materials/hydraulic_conductivity.jl b/src/materials/hydraulic_conductivity.jl
index 4b41182..2efb433 100644
--- a/src/materials/hydraulic_conductivity.jl
+++ b/src/materials/hydraulic_conductivity.jl
@@ -22,7 +22,7 @@ for the primal potential path via [`DarcyPotentialKernel`](@ref).
 # Example
 ```julia
 soil = HydraulicConductivity(K = 1e-4)
-kernel = DarcyPotentialKernel(ContinuumFormulation{FullThreeD}(), soil)
+kernel = DarcyPotentialKernel(ContinuumFormulation{ThreeDimensional}(), soil)
 ```
 """