diff --git a/python_tools/void_python_tools/backend/launchers.py b/python_tools/void_python_tools/backend/launchers.py
index 8676989..d3ca1b1 100644
--- a/python_tools/void_python_tools/backend/launchers.py
+++ b/python_tools/void_python_tools/backend/launchers.py
@@ -265,6 +265,7 @@ def launchGenerate(sample, binPath, workDir=None, inputDataDir=None,
     zMax = sample.zBoundaryMpc[1]
 
     boxVol = (xMax-xMin)*(yMax-yMin)*(zMax-zMin)
+    nbar = 1.0
 
   numTracers = int(open(zobovDir+"/mask_index.txt", "r").read())
   numTotal = int(open(zobovDir+"/total_particles.txt", "r").read())
diff --git a/python_tools/void_python_tools/voidUtil/plotUtil.py b/python_tools/void_python_tools/voidUtil/plotUtil.py
index 8ac1dce..d5ac3cd 100644
--- a/python_tools/void_python_tools/voidUtil/plotUtil.py
+++ b/python_tools/void_python_tools/voidUtil/plotUtil.py
@@ -25,7 +25,7 @@ import numpy as np
 import os
 import pylab as plt
 import void_python_tools.apTools as vp
-from void_python_tools.voidUtil import getArray
+from void_python_tools.voidUtil import getArray, shiftPart
 
 def fill_between(x, y1, y2=0, ax=None, **kwargs):
     """Plot filled region between `y1` and `y2`.