diff --git a/SWIG/Source/Modules/python.cxx b/SWIG/Source/Modules/python.cxx
index d76cbac82..26760a408 100644
--- a/SWIG/Source/Modules/python.cxx
+++ b/SWIG/Source/Modules/python.cxx
@@ -78,7 +78,7 @@ static  int       proxydel = 1;
 static  int       fastunpack = 0;
 static  int       fastproxy = 0;
 static  int       fastquery = 0;
-static  int       fastinit = 1;
+static  int       fastinit = 0;
 static  int       olddefs = 0;
 static  int       modernargs = 0;
 static  int       aliasobj0 = 0;