diff --git a/sylvilagus/scala/src/main/scala/com/meatballhat/sylvilagus/ch02/HelloWorldConsumer.scala b/sylvilagus/scala/src/main/scala/com/meatballhat/sylvilagus/ch02/HelloWorldConsumer.scala
index d47851b..e6c4497 100644
--- a/sylvilagus/scala/src/main/scala/com/meatballhat/sylvilagus/ch02/HelloWorldConsumer.scala
+++ b/sylvilagus/scala/src/main/scala/com/meatballhat/sylvilagus/ch02/HelloWorldConsumer.scala
@@ -4,7 +4,7 @@ import com.rabbitmq.client._
 
 object HelloWorldConsumer extends App {
     val factory = new ConnectionFactory()
-    factory.setUri("amqp://guest:guest@localhost:5672")
+    factory.setUri(sys.env("SYLVILAGUS_AMQP_URI"))
     val connection = factory.newConnection
     val channel = connection.createChannel
 
diff --git a/sylvilagus/scala/src/main/scala/com/meatballhat/sylvilagus/ch02/HelloWorldProducer.scala b/sylvilagus/scala/src/main/scala/com/meatballhat/sylvilagus/ch02/HelloWorldProducer.scala
index f2e5e1d..d796769 100644
--- a/sylvilagus/scala/src/main/scala/com/meatballhat/sylvilagus/ch02/HelloWorldProducer.scala
+++ b/sylvilagus/scala/src/main/scala/com/meatballhat/sylvilagus/ch02/HelloWorldProducer.scala
@@ -10,7 +10,7 @@ object HelloWorldProducer extends App {
     var messageBody = args(0)
 
     var factory = new ConnectionFactory()
-    factory.setUri("amqp://guest:guest@localhost:5672")
+    factory.setUri(sys.env("SYLVILAGUS_AMQP_URI"))
     var connection = factory.newConnection()
     var channel = connection.createChannel()