diff --git a/src/core/gpu_backend.h b/src/core/gpu_backend.h
index 5baa6448b..511e06594 100644
--- a/src/core/gpu_backend.h
+++ b/src/core/gpu_backend.h
@@ -27,7 +27,7 @@ struct MemorySaveState;
 // DESIGN NOTE: Only static methods should be called on the CPU thread.
 // You specifically don't have a global pointer available for this reason.
 
-class GPUBackend
+class ALIGN_TO_CACHE_LINE GPUBackend
 {
 public:
   static GPUThreadCommand* NewClearVRAMCommand();
diff --git a/src/core/gpu_presenter.h b/src/core/gpu_presenter.h
index a51053b9f..d1185cc71 100644
--- a/src/core/gpu_presenter.h
+++ b/src/core/gpu_presenter.h
@@ -23,7 +23,7 @@ struct GPUSettings;
 struct GPUBackendUpdateDisplayCommand;
 struct GPUBackendFramePresentationParameters;
 
-class GPUPresenter final
+class ALIGN_TO_CACHE_LINE GPUPresenter final
 {
 public:
   GPUPresenter();