diff --git a/src/xrt/auxiliary/util/u_hand_simulation.h b/src/xrt/auxiliary/util/u_hand_simulation.h
index d91ec4a4b..d9fb89fcb 100644
--- a/src/xrt/auxiliary/util/u_hand_simulation.h
+++ b/src/xrt/auxiliary/util/u_hand_simulation.h
@@ -19,22 +19,6 @@
 extern "C" {
 #endif
 
-
-
-/*!
- * The hand tracking model being used.
- *
- * XRT_HAND_TRACKING_MODEL_INTRINSIC for devices that measure hand tracking through sensors, ie gloves and knuckles
- * XRT_HAND_TRACKING_MODEL_EXTRINSIC for devices that measure hand tracking through external factors like cameras
- *
- * @ingroup aux_util
- */
-// enum u_hand_tracking_model
-// {
-// 	XRT_HAND_TRACKING_MODEL_INTRINSIC,
-// 	XRT_HAND_TRACKING_MODEL_EXTRINSIC,
-// };
-
 struct u_hand_sim_metacarpal
 {
 	struct xrt_vec2 swing;
diff --git a/src/xrt/auxiliary/util/u_hand_tracking.h b/src/xrt/auxiliary/util/u_hand_tracking.h
index 8fc4b918e..125f652bd 100644
--- a/src/xrt/auxiliary/util/u_hand_tracking.h
+++ b/src/xrt/auxiliary/util/u_hand_tracking.h
@@ -18,20 +18,6 @@ extern "C" {
 #endif
 
 
-/*!
- * The hand tracking model being used.
- *
- * XRT_HAND_TRACKING_MODEL_INTRINSIC for devices that measure hand tracking through sensors, ie gloves and knuckles
- * XRT_HAND_TRACKING_MODEL_EXTRINSIC for devices that measure hand tracking through external factors like cameras
- *
- * @ingroup aux_util
- */
-enum u_hand_tracking_model
-{
-	XRT_HAND_TRACKING_MODEL_INTRINSIC,
-	XRT_HAND_TRACKING_MODEL_EXTRINSIC,
-};
-
 struct u_hand_tracking_finger_value
 {
 	float splay;
@@ -108,7 +94,6 @@ struct u_hand_tracking
 	// scales dimensions like bone lengths
 	float scale;
 
-	enum u_hand_tracking_model model;
 	union {
 		struct u_hand_tracking_values finger_values;
 	} model_data;