diff --git a/openVulkanoCpp/Vulkan/Resources/ResourceManager.hpp b/openVulkanoCpp/Vulkan/Resources/ResourceManager.hpp
index 9fb0a9d..35d1c4e 100644
--- a/openVulkanoCpp/Vulkan/Resources/ResourceManager.hpp
+++ b/openVulkanoCpp/Vulkan/Resources/ResourceManager.hpp
@@ -117,7 +117,7 @@ namespace OpenVulkano
 			
 			MemoryAllocation* CreateMemoryAllocation(size_t size, uint32_t type, bool addToCache = true);
 
-			MemoryAllocation* GetFreeMemoryAllocation(size_t size, size_t alignment, uint32_t type, bool createIfAllFull = true);
+			MemoryAllocation* GetFreeMemoryAllocation(size_t size, vk::DeviceSize alignment, uint32_t type, bool createIfAllFull = true);
 
 			vk::DescriptorSetLayout* GetDescriptorLayoutSet(const DescriptorSetLayoutBinding& descriptorSetLayoutBinding);