diff --git a/build/update.xml b/build/update.xml
index ebef6ac3cc2b..5372bd479360 100644
--- a/build/update.xml
+++ b/build/update.xml
@@ -49,6 +49,7 @@
         <arg value="@{deploy}"/>
         <arg value="${project.home}/lib"/>
         <classpath>
+          <pathelement location="${modules.output}/production/util-rt"/>
           <pathelement location="${modules.output}/production/util"/>
           <pathelement location="${project.home}/lib/jna.jar"/>
           <pathelement location="${project.home}/lib/trove4j.jar"/>