diff --git a/build.xml b/build.xml
index df4a61e..55dc355 100644
--- a/build.xml
+++ b/build.xml
@@ -22,5 +22,8 @@ under the License.
   <!-- easy way to override properties -->
   <property file="build.properties"/>
 
+  <!-- don't fork junit; regexp classes not available -->
+  <property name="junit.fork" value="false" />
+
   <import file="common/build.xml"/>
-</project>
\ No newline at end of file
+</project>