diff --git a/rpcs3/Emu/Memory/vm_reservation.h b/rpcs3/Emu/Memory/vm_reservation.h
index d21a59395986..18c91b1ca59f 100644
--- a/rpcs3/Emu/Memory/vm_reservation.h
+++ b/rpcs3/Emu/Memory/vm_reservation.h
@@ -34,7 +34,7 @@ namespace vm
 	void reservation_update(u32 addr);
 	std::pair<bool, u64> try_reservation_update(u32 addr);
 
-	struct reservation_waiter_t
+	struct alignas(8) reservation_waiter_t
 	{
 		u32 wait_flag = 0;
 		u32 waiters_count = 0;