--- a/ruby-tools/pom.xml
+++ b/ruby-tools/pom.xml
@@ -133,6 +133,7 @@
               <arguments>
 		<argument>-jar</argument>
 		<argument>${project.build.directory}/jruby-complete-${jruby.version}.jar</argument>
+		<argument>-I/usr/share/jruby/lib/ruby/stdlib/</argument>
 		<argument>${basedir}/src/main/scripts/install_gems.rb</argument>
 	      </arguments>
 	    </configuration>