diff --git a/build/build.xml b/build/build.xml
index 2f66e5d8..bdcfaedd 100644
--- a/build/build.xml
+++ b/build/build.xml
@@ -24,6 +24,7 @@
     <property name="version.major" value="2"/>
     <property name="version.minor" value="5"/>
     <property name="version.revision" value="0"/>
+    <property name="version.extra" value=""/>
     <!-- For 'beta' or 'alpha' -->
 
     <!-- Setup the full version property correctly -->