diff --git a/test/test_projects/Diffusion3D_minimal/Project.toml b/test/test_projects/Diffusion3D_minimal/Project.toml
index 34cc63d6..e4ac62b7 100644
--- a/test/test_projects/Diffusion3D_minimal/Project.toml
+++ b/test/test_projects/Diffusion3D_minimal/Project.toml
@@ -14,5 +14,5 @@ AMDGPU = "21141c5a-9bdb-4563-92ae-f87d6854732e"
 CUDA = "052768ef-5323-5732-b1bb-66c8b64840ba"
 
 [extensions]
-#D3D_AMDGPUExt = "AMDGPU"
+D3D_AMDGPUExt = "AMDGPU"
 D3D_CUDAExt = "CUDA"