Added release type variable.
diff --git a/nant.build b/nant.build
index 5f6d0f4..db3018b 100644
--- a/nant.build
+++ b/nant.build
@@ -24,6 +24,7 @@
   <property name="project.name" value="Apache.NMS.MSMQ"/>
   <property name="project.group" value="org.apache.activemq"/>
   <property name="project.version" value="1.2.0" unless="${property::exists('project.version')}"/>
+  <property name="project.release.type" value="SNAPSHOT" unless="${property::exists('project.release.type')}" />
   <property name="project.short_description" value="Apache NMS for MSMQ Class Library"/>
   <property name="project.description" value="Apache NMS for MSMQ Class Library (.Net Messaging Library Implementation): An implementation of the NMS API for MSMQ"/>