diff --git a/interface/src/devices/RealSense.cpp b/interface/src/devices/RealSense.cpp
index 8cac4e02a8..a0491f7d22 100644
--- a/interface/src/devices/RealSense.cpp
+++ b/interface/src/devices/RealSense.cpp
@@ -15,6 +15,9 @@
 #include "Menu.h"
 #include "SharedUtil.h"
 
+const int PALMROOT_NUM_JOINTS = 3;
+const int FINGER_NUM_JOINTS = 4;
+
 const DeviceTracker::Name RealSense::NAME = "RealSense";
 
 // find the index of a joint from