diff --git a/pmd-netbeans/CHANGES.txt b/pmd-netbeans/CHANGES.txt
index 161ab684c5..43445c1217 100644
--- a/pmd-netbeans/CHANGES.txt
+++ b/pmd-netbeans/CHANGES.txt
@@ -1,3 +1,6 @@
+Version 0.4
+Fixed bug in manifest.mf, so now people are able to upgrade the currently installed version
+
 Version 0.3
 - Changed default rulesets
 - Removed all known bugs:
diff --git a/pmd-netbeans/build.xml b/pmd-netbeans/build.xml
index 812463e0d7..1a927c4833 100644
--- a/pmd-netbeans/build.xml
+++ b/pmd-netbeans/build.xml
@@ -42,14 +42,14 @@
 		</makenbm>
 		<delete dir="build/temp_distribution"/>
 	</target>
-	<target depends="clean,nbm" description="Builds the distribution" name="distribution">
-		<zip compress="true" destfile="build\pmd-netbeans-bin.zip">
+	<target depends="clean, nbm" description="Builds the distribution" name="distribution">
+		<zip compress="true" destfile="build\pmd-netbeans-bin-${VERSION}.zip">
 			<zipfileset dir=".">
 				<include name="*.txt"/>
 			</zipfileset>
 			<zipfileset dir="." fullpath="pmd.nbm" includes="build\pmd.nbm"/>
 		</zip>
-		<zip compress="true" destfile="build\pmd-netbeans-src.zip">
+		<zip compress="true" destfile="build\pmd-netbeans-src-${VERSION}.zip">
 			<zipfileset dir=".">
 				<include name="*.txt"/>
 				<include name="build.xml"/>
diff --git a/pmd-netbeans/src/manifest.mf b/pmd-netbeans/src/manifest.mf
index d9fcff2bdf..6c664f038f 100644
--- a/pmd-netbeans/src/manifest.mf
+++ b/pmd-netbeans/src/manifest.mf
@@ -1,5 +1,5 @@
 Manifest-Version: 1.0
-OpenIDE-Module-Specification-Version: 0.3
+OpenIDE-Module-Specification-Version: 0.40
 Created-By: NetBeans
 Class-Path: ext/pmd-1.0.jar
 OpenIDE-Module: pmd