diff --git a/Cantera/python/Cantera/num.py b/Cantera/python/Cantera/num.py
index 0af2519e6..90c48cdcc 100644
--- a/Cantera/python/Cantera/num.py
+++ b/Cantera/python/Cantera/num.py
@@ -1,5 +1,5 @@
 import _cantera
-nummodule = numo=py
+nummodule = None
 
 try:
     if _cantera.nummod == 'numpy':