diff --git a/scripts/generate_oxr_ext_support.py b/scripts/generate_oxr_ext_support.py
index 14ec3ce05..290e5de57 100755
--- a/scripts/generate_oxr_ext_support.py
+++ b/scripts/generate_oxr_ext_support.py
@@ -26,6 +26,7 @@ EXTENSIONS = (
     ['XR_EXT_debug_utils'],
     ['XR_MND_headless'],
     ['XR_MND_swapchain_usage_input_attachment_bit'],
+    ['XR_KHR_swapchain_usage_input_attachment_bit'],
     ['XR_EXTX_overlay'],
     ['XR_MNDX_egl_enable', 'XR_USE_PLATFORM_EGL', 'XR_USE_GRAPHICS_API_OPENGL'],
     ['XR_MNDX_ball_on_a_stick_controller'],
diff --git a/src/xrt/state_trackers/oxr/oxr_extension_support.h b/src/xrt/state_trackers/oxr/oxr_extension_support.h
index 3833f4a2d..a34b14f8a 100644
--- a/src/xrt/state_trackers/oxr/oxr_extension_support.h
+++ b/src/xrt/state_trackers/oxr/oxr_extension_support.h
@@ -200,6 +200,18 @@
 #endif
 
 
+/*
+ * XR_KHR_swapchain_usage_input_attachment_bit
+ */
+#if defined(XR_KHR_swapchain_usage_input_attachment_bit)
+#define OXR_HAVE_KHR_swapchain_usage_input_attachment_bit
+#define OXR_EXTENSION_SUPPORT_KHR_swapchain_usage_input_attachment_bit(_)                                              \
+	_(KHR_swapchain_usage_input_attachment_bit, KHR_SWAPCHAIN_USAGE_INPUT_ATTACHMENT_BIT)
+#else
+#define OXR_EXTENSION_SUPPORT_KHR_swapchain_usage_input_attachment_bit(_)
+#endif
+
+
 /*
  * XR_EXTX_overlay
  */
@@ -284,6 +296,7 @@
     OXR_EXTENSION_SUPPORT_EXT_debug_utils(_) \
     OXR_EXTENSION_SUPPORT_MND_headless(_) \
     OXR_EXTENSION_SUPPORT_MND_swapchain_usage_input_attachment_bit(_) \
+    OXR_EXTENSION_SUPPORT_KHR_swapchain_usage_input_attachment_bit(_) \
     OXR_EXTENSION_SUPPORT_EXTX_overlay(_) \
     OXR_EXTENSION_SUPPORT_MNDX_egl_enable(_) \
     OXR_EXTENSION_SUPPORT_MNDX_ball_on_a_stick_controller(_) \