diff --git a/experiments/ClimaCore/heat-diffusion/run.jl b/experiments/ClimaCore/heat-diffusion/run.jl
index 557a6d177c..dcbfb2d71e 100644
--- a/experiments/ClimaCore/heat-diffusion/run.jl
+++ b/experiments/ClimaCore/heat-diffusion/run.jl
@@ -304,7 +304,7 @@ ENV["GKSwstype"] = "nul"
 import Plots
 Plots.GRBackend()
 
-ARTIFACTS_DIR = joinpath("experiments/ClimaCore/output/heat-diffusion_artifacts")
+ARTIFACTS_DIR = joinpath("experiments/ClimaCore/output/heat-diffusion/artifacts")
 mkpath(ARTIFACTS_DIR)
 
 # - Vertical profile at start and end