--- a/build.xml
+++ b/build.xml
@@ -108,6 +108,7 @@
 		<javac destdir="build/prog" target="1.8" source="1.8" encoding="ISO-8859-1" includeantruntime="false">
 			<src path="src" />
 			<classpath refid="build.path" />
+            <classpath location="/usr/share/java/hamcrest-all.jar"/>
 		</javac>
 	</target>