diff --git a/openVulkanoCpp/AR/ArFrameMetadata.hpp b/openVulkanoCpp/AR/ArFrameMetadata.hpp
index bb63466..8f056b5 100644
--- a/openVulkanoCpp/AR/ArFrameMetadata.hpp
+++ b/openVulkanoCpp/AR/ArFrameMetadata.hpp
@@ -19,6 +19,7 @@ namespace OpenVulkano::AR
 		float exposureTime, exposureOffset, lightIntensity, lightColorTemp;
 		Math::Timestamp timestamp, timestampDepth;
 		ArTrackingState trackingState;
+		float physicalPixelSize = 0;
 
 		[[nodiscard]] std::string ToYaml() const;