diff --git a/src/groovy/grails/plugins/newdoc/DocPublisher.groovy b/src/groovy/grails/plugins/newdoc/DocPublisher.groovy
index 0c6f03f..d3b9880 100644
--- a/src/groovy/grails/plugins/newdoc/DocPublisher.groovy
+++ b/src/groovy/grails/plugins/newdoc/DocPublisher.groovy
@@ -137,6 +137,7 @@ class DocPublisher {
 
         // unpack documentation resources
         String docResources = "${workDir}/doc-resources"
+        ant.delete(dir: docResources)
         ant.mkdir(dir: docResources)
         //unpack(dest: docResources, src: "grails-doc-files.jar")
 		ant.copy(todir: docResources, overwrite: true) {
@@ -623,4 +624,4 @@ class DocPublisher {
             overrideAliasesFromToc(section)
         }
     }
-}
\ No newline at end of file
+}