diff --git a/build.xml b/build.xml
index 177ac191..83fef2e9 100644
--- a/build.xml
+++ b/build.xml
@@ -117,7 +117,7 @@ the common tasks and can be called on to run the main aspects of all the sub-scr
 	
 	<target name="version" depends="ensure-ipp" description="Shows the version number." unless="lombok.version">
 		<mkdir dir="build/lombok" />
-		<javac includeDestClasses="false" srcdir="src/core" debug="on" destdir="build/lombok" source="1.5" target="1.5" includes="lombok/core/Version.java" />
+		<javac includeDestClasses="false" srcdir="src/core" debug="on" destdir="build/lombok" source="1.5" target="1.5" includes="lombok/core/Version.java" includeantruntime="false" />
 		<java
 			classname="lombok.core.Version"
 			classpath="build/lombok"
@@ -139,14 +139,14 @@ the common tasks and can be called on to run the main aspects of all the sub-scr
 		anymore until you 'ant clean'. That's very much not desired, so we kill the processor, which stops lombok from running.
 		We re-create the file at the end of this target. -->
 		<delete file="build/lombok/META-INF/services/javax.annotation.processing.Processor" quiet="true" />
-		<ivy:compile destdir="build/lombok" source="1.5" target="1.5">
+		<ivy:compile destdir="build/lombok" source="1.5" target="1.5" includeantruntime="false">
 			<src path="src/core" />
 			<src path="src/installer" />
 			<src path="src/eclipseAgent" />
 			<exclude name="lombok/javac/**" />
 			<classpath refid="build.path" />
 		</ivy:compile>
-		<ivy:compile destdir="build/lombok" source="1.6" target="1.6">
+		<ivy:compile destdir="build/lombok" source="1.6" target="1.6" includeantruntime="false">
 			<src path="src/core" />
 			<src path="src/delombok" />
 			<include name="lombok/javac/**" />