diff --git a/build.xml b/build.xml
index 9cdf44d13767597bad4ddf03c20be75033e01795..a97796f47ef9af092d7b77aab392d3cef63ba52f 100644
--- a/build.xml
+++ b/build.xml
@@ -151,7 +151,7 @@
     <echo message="${LASTOUTPUT}" />
 
     <!-- delete the configuration, sample index, logs and cache data -->
-    <delete dir="${srcdir}/solr/alphabetic_browse" includeemptydirs="true" failonerror="true" />
+    <delete dir="${srcdir}/solr/alphabetical_browse" includeemptydirs="true" failonerror="true" />
     <delete dir="${srcdir}/solr/stats/index" includeemptydirs="true" failonerror="true" />
     <delete dir="${srcdir}/solr/authority/index" includeemptydirs="true" failonerror="true" />
     <delete dir="${srcdir}/solr/biblio/index" includeemptydirs="true" failonerror="true" />