diff --git a/src/xrt/auxiliary/util/u_var.h b/src/xrt/auxiliary/util/u_var.h
index 36da58eb5..eea3b6a7b 100644
--- a/src/xrt/auxiliary/util/u_var.h
+++ b/src/xrt/auxiliary/util/u_var.h
@@ -232,6 +232,7 @@ enum u_var_kind
 	U_VAR_KIND_RO_FTEXT,
 	U_VAR_KIND_RO_I16,
 	U_VAR_KIND_RO_I32,
+	U_VAR_KIND_RO_U16,
 	U_VAR_KIND_RO_U32,
 	U_VAR_KIND_RO_F32,
 	U_VAR_KIND_RO_I64,
@@ -391,7 +392,8 @@ u_var_force_on(void);
 	ADD_FUNC(ro_ftext, const char, RO_FTEXT)                                                                       \
 	ADD_FUNC(ro_i16, int16_t, RO_I16)                                                                              \
 	ADD_FUNC(ro_i32, int32_t, RO_I32)                                                                              \
-	ADD_FUNC(ro_u32, uint32_t, RO_I32)                                                                             \
+	ADD_FUNC(ro_u16, uint16_t, RO_U16)                                                                             \
+	ADD_FUNC(ro_u32, uint32_t, RO_U32)                                                                             \
 	ADD_FUNC(ro_f32, float, RO_F32)                                                                                \
 	ADD_FUNC(ro_i64, int64_t, RO_I64)                                                                              \
 	ADD_FUNC(ro_u64, uint64_t, RO_U64)                                                                             \
diff --git a/src/xrt/state_trackers/gui/gui_scene_debug.c b/src/xrt/state_trackers/gui/gui_scene_debug.c
index 3ee122cf0..0d4cda71f 100644
--- a/src/xrt/state_trackers/gui/gui_scene_debug.c
+++ b/src/xrt/state_trackers/gui/gui_scene_debug.c
@@ -692,6 +692,7 @@ on_elem(struct u_var_info *info, void *priv)
 	case U_VAR_KIND_RO_FTEXT: igText(ptr ? (char *)ptr : "%s", name); break;
 	case U_VAR_KIND_RO_I16: igInputScalar(name, ImGuiDataType_S16, ptr, NULL, NULL, NULL, ro_i_flags); break;
 	case U_VAR_KIND_RO_I32: igInputScalar(name, ImGuiDataType_S32, ptr, NULL, NULL, NULL, ro_i_flags); break;
+	case U_VAR_KIND_RO_U16: igInputScalar(name, ImGuiDataType_U16, ptr, NULL, NULL, NULL, ro_i_flags); break;
 	case U_VAR_KIND_RO_U32: igInputScalar(name, ImGuiDataType_U32, ptr, NULL, NULL, NULL, ro_i_flags); break;
 	case U_VAR_KIND_RO_F32: igInputScalar(name, ImGuiDataType_Float, ptr, NULL, NULL, "%+f", ro_i_flags); break;
 	case U_VAR_KIND_RO_I64: igInputScalar(name, ImGuiDataType_S64, ptr, NULL, NULL, NULL, ro_i_flags); break;