diff --git a/build.xml b/build.xml
index 7137cee8..bdfc74f0 100644
--- a/build.xml
+++ b/build.xml
@@ -123,9 +123,11 @@
   <property name="maven.deploy.repo" value="file://${user.home}/.m2/repository"/>
   <target name="maven-deploy" depends="dist"
           description="Deploys our build artifacts to a Maven repository.">
+    <jar basedir="${src.dir}" destfile="${deploy.dir}/${ant.project.name}-sources.jar"/>
     <artifact:deploy file="${deploy.dir}/${ant.project.name}.jar" uniqueVersion="false">
       <remoteRepository url="${maven.deploy.repo}"/>
       <pom refid="pom"/>
+      <attach file="${deploy.dir}/${ant.project.name}-sources.jar" classifier="sources"/>
     </artifact:deploy>
     <artifact:pom id="gwt-pom" file="gwt-pom.xml"/>
     <artifact:deploy file="${deploy.dir}/${ant.project.name}-gwt.jar" uniqueVersion="false">