diff --git a/build.xml b/build.xml
index 3446c1c..499b54c 100644
--- a/build.xml
+++ b/build.xml
@@ -1,21 +1,26 @@
 <?xml version="1.0"?>
 <project name="LearningJava" default="build">
 
-  <target name="clean" description="remove intermediate files">
-    <delete>
-      <fileset dir="obj" includes="**/*.class"/>
-    </delete>
-  </target>
+    <target name="clean" description="remove intermediate files">
+        <delete>
+            <fileset dir="obj" includes="**/*.class"/>
+        </delete>
+    </target>
 
-  <target name="build" description="compile Java sources">
-    <javac srcdir="src" destdir="obj" includeantruntime="yes"/>
-  </target>
+    <target name="build" description="compile Java sources">
+        <javac srcdir="src" destdir="obj" includeantruntime="yes"/>
+    </target>
 
-  <target name="jar" depends="build"
-        description="create Jar from compiled sources">
-    <jar destfile="dist/learning-java.jar">
-      <fileset dir="obj" includes="**/*.class"/>
-    </jar>
-  </target>
+    <target name="jar" depends="build"
+            description="create Jar from compiled sources">
+        <jar destfile="dist/learning-java.jar">
+            <fileset dir="obj" includes="**/*.class"/>
+        </jar>
+    </target>
+
+    <target name="hello" depends="build" description="runs HelloSir">
+        <java classname="com.meatballhat.learningjava.HelloSir"
+            classpath="obj"/>
+    </target>
 
 </project>