diff --git a/core/build.xml b/core/build.xml
index 603f5787b..ba9e25a8c 100644
--- a/core/build.xml
+++ b/core/build.xml
@@ -80,7 +80,7 @@
 			<manifest>
 				<attribute name="Main-Class" value="${main-class}" />
 				<attribute name="SplashScreen-Image" value="pix/splashscreen.png" />
-				<attribute name="Classpath-Jars" value="${lib.dir}/gluegen-rt.jar ${lib.dir}/jogl.all.jar" />
+				<attribute name="Classpath-Jars" value="lib/gluegen-rt.jar lib/jogl.all.jar" />
 			</manifest>
 
 			<!-- Include, in the root of the JAR, the resources needed by OR -->