diff --git a/cfg/axis_leg.yaml b/cfg/axis_leg.yaml
index 94e1628..3690537 100644
--- a/cfg/axis_leg.yaml
+++ b/cfg/axis_leg.yaml
@@ -34,6 +34,7 @@ encoder:
   # External feedback is supplied by the C++ ideal plant; no EtherCAT position link.
 
 trajectory:
+  source: 1
   axis:
     velocity: 1
     acceleration: 10