diff --git a/swing/build.xml b/swing/build.xml
index 5b5c4408e..0256084b9 100644
--- a/swing/build.xml
+++ b/swing/build.xml
@@ -27,7 +27,7 @@
 	<property name="dist.src"    value="${jar.dir}/${pkgname}-src.zip"/>
 	
 	<!-- The main class of the application -->
-	<property name="main-class"  value="net.sf.openrocket.startup.Startup"/>
+	<property name="main-class"  value="net.sf.openrocket.startup.OpenRocket"/>
 
 	<!-- Classpath definitions -->
 	<path id="classpath">