diff --git a/.nant/bamboo.build b/.nant/bamboo.build
index 862ff6e7b5..42d0b223df 100644
--- a/.nant/bamboo.build
+++ b/.nant/bamboo.build
@@ -67,5 +67,7 @@
     <exec program="doxygen" workingdir="../doc" commandline="doxygen.conf" />
     <exec program="rsync" workingdir="../doc" commandline="-az - - delete html/ /home/afrisby/public_html/docs/html/" />
 -->
+ <!-- ensure a clean checkout each time -->
+   <delete dir="../" />
   </target>
 </project>