diff --git a/openVulkanoCpp/AR/ArFrameMetadata.hpp b/openVulkanoCpp/AR/ArFrameMetadata.hpp
index a6c8185..33e7db1 100644
--- a/openVulkanoCpp/AR/ArFrameMetadata.hpp
+++ b/openVulkanoCpp/AR/ArFrameMetadata.hpp
@@ -26,9 +26,9 @@ namespace OpenVulkano::AR
 
 		[[nodiscard]] std::string ToXML() const;
 
-		static ArFrameMetadata FromXML(const char* xml, size_t length);
+		[[nodiscard]] static ArFrameMetadata FromXML(const char* xml, size_t length);
 
-		static ArFrameMetadata FromYaml(const char* yaml, size_t length);
+		[[nodiscard]] static ArFrameMetadata FromYaml(const char* yaml, size_t length);
 
 		static ArFrameMetadata FromContent(const char* content, size_t length)
 		{