diff --git a/examples/hdf5_scene_analysis.ipynb b/examples/hdf5_scene_analysis.ipynb
index 03808de..c391978 100644
--- a/examples/hdf5_scene_analysis.ipynb
+++ b/examples/hdf5_scene_analysis.ipynb
@@ -222,8 +222,9 @@
       "for frame, next_frame in scene.iter_segments():\n",
       "    # We don't actually use ``next_frame`` here.\n",
       "    if len(frame.particles) == 40:\n",
-      "        vel_interp = interp(frame.tracers.pos(), frame.particles.pos(),\n",
+      "        interp.set_scene(frame.tracers.pos(), frame.particles.pos(),\n",
       "                frame.tracers.velocity())\n",
+      "        vel_interp = interp.interpolate()\n",
       "        rel_vel = frame.particles.velocity() - vel_interp\n",
       "        \n",
       "        # Color by relative slip velocity\n",
@@ -383,4 +384,4 @@
    "metadata": {}
   }
  ]
-}
\ No newline at end of file
+}