diff --git a/python_tools/void_python_tools/voidUtil/plotUtil.py b/python_tools/void_python_tools/voidUtil/plotUtil.py
index 4ccf599..8ac1dce 100644
--- a/python_tools/void_python_tools/voidUtil/plotUtil.py
+++ b/python_tools/void_python_tools/voidUtil/plotUtil.py
@@ -183,7 +183,7 @@ def plotEllipDist(catalogList,
 
 
 # -----------------------------------------------------------------------------
-def plotVoidCells(catalogList,
+def plotVoidCells(catalog,
               voidID,
               figDir="./",
               plotName="cells",