*** empty log message ***
diff --git a/releng/org.eclipse.epp.usagedata.releng.tycho/pom.xml b/releng/org.eclipse.epp.usagedata.releng.tycho/pom.xml
index c3f6b26..118b35b 100644
--- a/releng/org.eclipse.epp.usagedata.releng.tycho/pom.xml
+++ b/releng/org.eclipse.epp.usagedata.releng.tycho/pom.xml
@@ -7,6 +7,13 @@
 	<artifactId>workspace</artifactId>
 	<version>1.3.1-SNAPSHOT</version>
 	<packaging>pom</packaging>
+
+	<properties>
+		<tycho-version>0.10.0</tycho-version>
+		<eclipse-site>http://download.eclipse.org/releases/helios</eclipse-site>
+		<orbit-site>http://download.eclipse.org/tools/orbit/downloads/drops/R20100114021427/updateSite</orbit-site>
+	</properties>
+
 	<modules>
 		<module>../org.eclipse.epp.usagedata.feature</module>
 		<module>../org.eclipse.epp.usagedata.gathering</module>
@@ -18,23 +25,43 @@
 		<!-- <module>../org.eclipse.epp.usagedata.recording.tests</module> -->
 		<!-- <module>../org.eclipse.epp.usagedata.ui.tests</module> -->
 	</modules>
+
 	<repositories>
 		<repository>
 			<id>helios</id>
 			<layout>p2</layout>
-			<url>http://download.eclipse.org/releases/helios</url>
+			<url>${eclipse-site}</url>
+		</repository>
+		<repository>
+			<id>orbit</id>
+			<layout>p2</layout>
+			<url>${orbit-site}</url>
 		</repository>
 	</repositories>
+
 	<build>
 		<plugins>
 			<plugin>
 				<groupId>org.sonatype.tycho</groupId>
 				<artifactId>tycho-maven-plugin</artifactId>
-				<version>0.10.0</version>
+				<version>${tycho-version}</version>
 				<extensions>true</extensions>
 			</plugin>
 			<plugin>
 				<groupId>org.sonatype.tycho</groupId>
+				<artifactId>maven-osgi-source-plugin</artifactId>
+				<version>${tycho-version}</version>
+				<executions>
+					<execution>
+						<id>attach-sources</id>
+						<goals>
+							<goal>plugin-source</goal>
+						</goals>
+					</execution>
+				</executions>
+			</plugin>
+			<plugin>
+				<groupId>org.sonatype.tycho</groupId>
 				<artifactId>target-platform-configuration</artifactId>
 				<version>0.9.0</version>
 				<configuration>