diff --git a/direct/src/interval/IntervalTest.py b/direct/src/interval/IntervalTest.py
index 9eef961061..0aedf9e820 100644
--- a/direct/src/interval/IntervalTest.py
+++ b/direct/src/interval/IntervalTest.py
@@ -23,10 +23,10 @@ BOAT_END = boatTrack.getIntervalEndTime('boatpath')
 
 # Make the dock lerp up so that it's up when the boat reaches the end of
 # its mopath
-dockLerp = LerpPosHprInterval('lerp', dock,
-                              Point3(0, 0, -5),
-                              hpr = Vec3(0, 0, 0),
-                              5.0)
+dockLerp = LerpPosHprInterval(dock, 5.0, 
+			      Point3(0, 0, -5), 
+			      hpr = Vec3(0, 0, 0), 
+			      name='dock-lerp')
 # We need the dock's state to be defined before the lerp
 dockPos = PosHprInterval(dock, dock.getPos(), dock.getHpr(), 1.0, 'dockpos')
 dockUpTime = BOAT_END - dockLerp.getDuration()