diff --git a/build.xml b/build.xml
index da3e4ca0..dc36112c 100644
--- a/build.xml
+++ b/build.xml
@@ -7,10 +7,12 @@
 	
 	<target name="compile">
 		<mkdir dir="build/classes"/>
-		<javac destdir="build/classes" encoding="utf-8">
+		<javac destdir="build/classes" encoding="utf-8" source="1.3" target="1.2">
 			<src path="src/main/java"/>
 			<src path="src/addon/java"/>
-			<classpath path="lib/commons-cli-1.1.jar"/>
+			<exclude name="lua/debug/**"/>
+			<exclude name="lua/LuaJVM.java"/>
+			<exclude name="lua/addon/luajava/**"/>
 		</javac>
 	</target>