diff --git a/src/xrt/state_trackers/oxr/oxr_conversions.h b/src/xrt/state_trackers/oxr/oxr_conversions.h
index 2532bf4c9..df5d395f4 100644
--- a/src/xrt/state_trackers/oxr/oxr_conversions.h
+++ b/src/xrt/state_trackers/oxr/oxr_conversions.h
@@ -57,6 +57,7 @@ oxr_ref_space_to_xr(enum oxr_space_type space_type)
 	switch (space_type) {
 	case OXR_SPACE_TYPE_REFERENCE_VIEW: return XR_REFERENCE_SPACE_TYPE_VIEW;
 	case OXR_SPACE_TYPE_REFERENCE_LOCAL: return XR_REFERENCE_SPACE_TYPE_LOCAL;
+	case OXR_SPACE_TYPE_REFERENCE_LOCAL_FLOOR: return XR_REFERENCE_SPACE_TYPE_LOCAL_FLOOR_EXT;
 	case OXR_SPACE_TYPE_REFERENCE_STAGE: return XR_REFERENCE_SPACE_TYPE_STAGE;
 	case OXR_SPACE_TYPE_REFERENCE_UNBOUNDED_MSFT: return XR_REFERENCE_SPACE_TYPE_UNBOUNDED_MSFT;
 	case OXR_SPACE_TYPE_REFERENCE_COMBINED_EYE_VARJO: return XR_REFERENCE_SPACE_TYPE_COMBINED_EYE_VARJO;
@@ -72,6 +73,7 @@ xr_ref_space_to_oxr(XrReferenceSpaceType space_type)
 	switch (space_type) {
 	case XR_REFERENCE_SPACE_TYPE_VIEW: return OXR_SPACE_TYPE_REFERENCE_VIEW;
 	case XR_REFERENCE_SPACE_TYPE_LOCAL: return OXR_SPACE_TYPE_REFERENCE_LOCAL;
+	case XR_REFERENCE_SPACE_TYPE_LOCAL_FLOOR_EXT: return OXR_SPACE_TYPE_REFERENCE_LOCAL_FLOOR;
 	case XR_REFERENCE_SPACE_TYPE_STAGE: return OXR_SPACE_TYPE_REFERENCE_STAGE;
 	case XR_REFERENCE_SPACE_TYPE_UNBOUNDED_MSFT: return OXR_SPACE_TYPE_REFERENCE_UNBOUNDED_MSFT;
 	case XR_REFERENCE_SPACE_TYPE_COMBINED_EYE_VARJO: return OXR_SPACE_TYPE_REFERENCE_COMBINED_EYE_VARJO;
diff --git a/src/xrt/state_trackers/oxr/oxr_defines.h b/src/xrt/state_trackers/oxr/oxr_defines.h
index 2b35fcc33..1b4d97a36 100644
--- a/src/xrt/state_trackers/oxr/oxr_defines.h
+++ b/src/xrt/state_trackers/oxr/oxr_defines.h
@@ -92,9 +92,10 @@ enum oxr_image_state
  */
 enum oxr_space_type
 {
-	OXR_SPACE_TYPE_REFERENCE_VIEW = 1,
-	OXR_SPACE_TYPE_REFERENCE_LOCAL = 2,
-	OXR_SPACE_TYPE_REFERENCE_STAGE = 3,
+	OXR_SPACE_TYPE_REFERENCE_VIEW,
+	OXR_SPACE_TYPE_REFERENCE_LOCAL,
+	OXR_SPACE_TYPE_REFERENCE_LOCAL_FLOOR,
+	OXR_SPACE_TYPE_REFERENCE_STAGE,
 	OXR_SPACE_TYPE_REFERENCE_UNBOUNDED_MSFT,
 	OXR_SPACE_TYPE_REFERENCE_COMBINED_EYE_VARJO,
 
diff --git a/src/xrt/state_trackers/oxr/oxr_objects.h b/src/xrt/state_trackers/oxr/oxr_objects.h
index 5d3212865..ca04b6a8a 100644
--- a/src/xrt/state_trackers/oxr/oxr_objects.h
+++ b/src/xrt/state_trackers/oxr/oxr_objects.h
@@ -1893,6 +1893,7 @@ oxr_space_type_is_reference(enum oxr_space_type space_type)
 	switch (space_type) {
 	case OXR_SPACE_TYPE_REFERENCE_VIEW:
 	case OXR_SPACE_TYPE_REFERENCE_LOCAL:
+	case OXR_SPACE_TYPE_REFERENCE_LOCAL_FLOOR:
 	case OXR_SPACE_TYPE_REFERENCE_STAGE:
 	case OXR_SPACE_TYPE_REFERENCE_UNBOUNDED_MSFT:
 	case OXR_SPACE_TYPE_REFERENCE_COMBINED_EYE_VARJO: return true;
diff --git a/src/xrt/state_trackers/oxr/oxr_space.c b/src/xrt/state_trackers/oxr/oxr_space.c
index 0a0a63036..8c4c88717 100644
--- a/src/xrt/state_trackers/oxr/oxr_space.c
+++ b/src/xrt/state_trackers/oxr/oxr_space.c
@@ -119,6 +119,7 @@ get_xrt_space(struct oxr_logger *log, struct oxr_space *spc, struct xrt_space **
 	case OXR_SPACE_TYPE_ACTION: return get_xrt_space_action(log, spc, out_xspace);
 	case OXR_SPACE_TYPE_REFERENCE_VIEW: xspace = spc->sess->sys->xso->semantic.view; break;
 	case OXR_SPACE_TYPE_REFERENCE_LOCAL: xspace = spc->sess->sys->xso->semantic.local; break;
+	case OXR_SPACE_TYPE_REFERENCE_LOCAL_FLOOR: xspace = NULL; break;
 	case OXR_SPACE_TYPE_REFERENCE_STAGE: xspace = spc->sess->sys->xso->semantic.stage; break;
 	case OXR_SPACE_TYPE_REFERENCE_UNBOUNDED_MSFT: xspace = spc->sess->sys->xso->semantic.unbounded; break;
 	case OXR_SPACE_TYPE_REFERENCE_COMBINED_EYE_VARJO: xspace = NULL; break;