diff --git a/addon/YaCy.app/Contents/Info.plist b/addon/YaCy.app/Contents/Info.plist
index 35343be6a..2374e2510 100644
--- a/addon/YaCy.app/Contents/Info.plist
+++ b/addon/YaCy.app/Contents/Info.plist
@@ -25,7 +25,7 @@
 	<key>Java</key>
 	<dict>
 		<key>VMOptions</key>
-		<string>-Xmx600m -Xms90m -Dsolr.directoryFactory=solr.MMapDirectoryFactory -Dfile.encoding=UTF-8</string>
+		<string>-server -d64 -Xmx600m -Xms90m -Djava.net.preferIPv4Stack=true -Dfile.encoding=UTF-8 -Dsolr.directoryFactory=solr.MMapDirectoryFactory</string>
 		<key>WorkingDirectory</key>
 		<string>$APP_PACKAGE/Contents/Resources/Java</string>
 		<key>MainClass</key>