diff --git a/build.xml b/build.xml
index 4a86960d9f..3152b73f8a 100644
--- a/build.xml
+++ b/build.xml
@@ -352,6 +352,9 @@
         <delete file="syndie-standalone.zip" failonerror="false" quiet="true" />
         <delete file="i2psnark-standalone.zip" failonerror="false" quiet="true" />
         <delete file="BOB-one.jar" failonerror="false" quiet="true" />	
+	<delete dir="core/c/jbigi/bin" />
+	<delete dir="core/c/jbigi/lib" />
+	<delete dir="core/c/jcpuid/lib" />
         <delete dir="debian/tmp" />
         <delete dir="debian/db" />
         <delete file="debian/files" />