diff --git a/python_tools/void_python_tools/voidUtil/plotUtil.py b/python_tools/void_python_tools/voidUtil/plotUtil.py
index 1309acc..b324816 100644
--- a/python_tools/void_python_tools/voidUtil/plotUtil.py
+++ b/python_tools/void_python_tools/voidUtil/plotUtil.py
@@ -183,12 +183,12 @@ def plotEllipDist(catalogList,
 
 
 # -----------------------------------------------------------------------------
-plotVoidCells(catalogList,
+def plotVoidCells(catalogList,
               voidID,
               figDir="./",
               plotName="cells",
               plotDensity=True,
-              sliceWidth=250)
+              sliceWidth=250):
 
 # plots the particles belonging to a void
 #   catalog: void catalog