diff --git a/scripts/hpp_genxr.py b/scripts/hpp_genxr.py
index 6b95fe4..3a19058 100755
--- a/scripts/hpp_genxr.py
+++ b/scripts/hpp_genxr.py
@@ -80,6 +80,11 @@ def genTarget(args):
             "XR_MSFT_controller_model",
             # Projection of static string fails
             "XR_MSFT_spatial_graph_bridge",
+            "XR_MSFT_spatial_anchor_persistence",
+            "XR_MSFT_holographic_window_attachment",
+            # Projection of UuidMSFT fails
+            "XR_MSFT_scene_understanding",
+            "XR_MSFT_scene_understanding_serialization",
         ))
 
     # Turn lists of names/patterns into matching regular expressions