diff --git a/buildADQL.xml b/buildADQL.xml
index 9d87dab296c18f454da95e5f3789a31e441ff14d..26de09d72c099ece8b75272734779d37d322fcdf 100644
--- a/buildADQL.xml
+++ b/buildADQL.xml
@@ -87,7 +87,7 @@
 	
 	<target name="compileLib" depends="clean,junitValidation" description="Build all the classes of the ADQL library. This target is particularly usefull because it lets highlighting missing dependencies.">
 		<mkdir dir="${compileDir}" />
-		<javac destdir="${compileDir}" srcdir="${srcDir}" includes="${includesList}" includeantruntime="false" encoding="utf8">
+		<javac destdir="${compileDir}" srcdir="${srcDir}" includes="${includesList}" includeantruntime="false" encoding="utf8" bootclasspath="${adql.bootclasspath}">
 			<classpath refid="adql.classpath" />
 		</javac>
 	</target>