diff --git a/src/misc.h b/src/misc.h
index fe5990e0..9ea57fa8 100644
--- a/src/misc.h
+++ b/src/misc.h
@@ -271,7 +271,7 @@ public:
 
   template <typename U> AlignedAllocator(const AlignedAllocator<U>&) {}
 
-  T* allocate(std::size_t n) { return (T*)std_aligned_alloc(n * sizeof(T), alignof(T)); }
+  T* allocate(std::size_t n) { return (T*)std_aligned_alloc(alignof(T), n * sizeof(T)); }
   void deallocate(T* p, std::size_t n) { std_aligned_free(p); }
 };
 
diff --git a/src/nnue/trainer/trainer.h b/src/nnue/trainer/trainer.h
index b42cb4fa..4b467041 100644
--- a/src/nnue/trainer/trainer.h
+++ b/src/nnue/trainer/trainer.h
@@ -111,7 +111,7 @@ IntType Round(double value) {
 // make_shared with alignment
 template <typename T, typename... ArgumentTypes>
 std::shared_ptr<T> MakeAlignedSharedPtr(ArgumentTypes&&... arguments) {
-  const auto ptr = new(std_aligned_alloc(sizeof(T), alignof(T)))
+  const auto ptr = new(std_aligned_alloc(alignof(T), sizeof(T)))
       T(std::forward<ArgumentTypes>(arguments)...);
   return std::shared_ptr<T>(ptr, AlignedDeleter<T>());
 }