diff --git a/build.xml b/build.xml
index 7abdb742c5..44574a2208 100644
--- a/build.xml
+++ b/build.xml
@@ -182,6 +182,7 @@ Build-Date: ${build.tstamp}
                 <!-- Java 9 stuff. Entries are safely ignored by Java 8 -->
                 <attribute name="Add-Exports" value="java.base/sun.security.action java.desktop/com.apple.eawt java.desktop/com.sun.imageio.spi java.desktop/com.sun.imageio.plugins.jpeg javafx.graphics/com.sun.javafx.application jdk.deploy/com.sun.deploy.config" />
                 <attribute name="Add-Opens" value="java.base/java.lang java.base/java.nio java.base/jdk.internal.loader java.base/jdk.internal.ref java.desktop/javax.imageio.spi java.desktop/javax.swing.text.html java.prefs/java.util.prefs" />
+                <attribute name="Automatic-Module-Name" value="de.openstreetmap.josm" />
             </manifest>
         </jar>
         <!-- Sign jar if all environment variables are set -->