diff --git a/python/python/parse-config b/python/python/parse-config
index 87013ee35..e76f77f68 100644
--- a/python/python/parse-config
+++ b/python/python/parse-config
@@ -2,7 +2,7 @@
 # This copyright note is auto-generated by ./scripts/Create-CopyPatch.
 #
 # Filename: package/.../python/parse-config
-# Copyright (C) 2009 The OpenSDE Project
+# Copyright (C) 2009 - 2010 The OpenSDE Project
 #
 # More information can be found in the files COPYING and README.
 #
@@ -21,4 +21,7 @@ if pkginstalled -f python; then
 		done
 		export PYTHONPATH
 	fi
+else
+	# ensure that PYTHON environment variable is not leaking into the sandbox
+	unset PYTHON
 fi