diff --git a/source.env b/source.env
index a3356c1..943f711 100644
--- a/source.env
+++ b/source.env
@@ -1,3 +1,11 @@
-DOCKER_HOME=/opt/Docker
+#!/bin/bash
+# Converted the env file to a shell script so that $0 can be used.
+
+DIR=`dirname $0`
+if [[ $DIR == \.* ]]; then
+	DIR=`pwd`
+fi
+
+DOCKER_HOME=$DIR
 DOCKER_PATH=$DOCKER_HOME/bin
 PATH=$DOCKER_PATH:$PATH