diff --git a/addon/YaCy.app/Contents/Info.plist b/addon/YaCy.app/Contents/Info.plist
index 0f0220333..c0ab76fdd 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>-server -d64 -Xmx600m -Xms90m -Djava.net.preferIPv4Stack=true -Dfile.encoding=UTF-8 -Dsolr.directoryFactory=solr.MMapDirectoryFactory</string>
+		<string>-server -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>
diff --git a/addon/yacyInit.m4 b/addon/yacyInit.m4
index dcfc39ff3..333028cd2 100644
--- a/addon/yacyInit.m4
+++ b/addon/yacyInit.m4
@@ -57,7 +57,7 @@ SHUTDOWN_TIMEOUT=50
 # Default niceness if not set in config file
 NICE_VAL=0
 
-JAVA_ARGS="-server -Djava.net.preferIPv4Stack=true -Djava.awt.headless=true -Dfile.encoding=UTF-8 -d64 -Dsolr.directoryFactory=solr.MMapDirectoryFactory"
+JAVA_ARGS="-server -Djava.net.preferIPv4Stack=true -Djava.awt.headless=true -Dfile.encoding=UTF-8 -Dsolr.directoryFactory=solr.MMapDirectoryFactory"
 
 ifdef(`openSUSE', `dnl
 . /etc/rc.status
diff --git a/startYACY.sh b/startYACY.sh
index ef59f49bf..eb4ed4dc5 100755
--- a/startYACY.sh
+++ b/startYACY.sh
@@ -133,7 +133,7 @@ then
 fi
 
 #turn on MMap for Solr if OS is a 64bit OS
-if [ -n "`uname -m | grep 64`" ]; then JAVA_ARGS="$JAVA_ARGS -d64 -Dsolr.directoryFactory=solr.MMapDirectoryFactory"; fi
+if [ -n "`uname -m | grep 64`" ]; then JAVA_ARGS="$JAVA_ARGS -Dsolr.directoryFactory=solr.MMapDirectoryFactory"; fi
 
 if [ ! -f $CONFIGFILE -a -f DATA/SETTINGS/httpProxy.conf ]
 then