diff --git a/sdk/nbproject/project.properties b/sdk/nbproject/project.properties
index b44b63b54..78bf93ed3 100644
--- a/sdk/nbproject/project.properties
+++ b/sdk/nbproject/project.properties
@@ -9,7 +9,7 @@ plugins.version=3.0.0
 #used netbeans platform
 netbeans.platform.url=http://download.netbeans.org/netbeans/7.2.1/final/zip/netbeans-7.2.1-201210100934-ml.zip
 #command line args
-run.args.extra=-J-Xmx512m -J-XX:PermSize=128m -J-XX:MaxDirectMemorySize=2048m -J-Dapple.awt.graphics.UseQuartz=true -J-Dsun.java2d.noddraw=true
+run.args.extra=-J-Xmx512m -J-XX:PermSize=128m -J-XX:MaxDirectMemorySize=2048m -J-Dsun.zip.disableMemoryMapping=true -J-Dapple.awt.graphics.UseQuartz=true -J-Dsun.java2d.noddraw=true
 auxiliary.org-netbeans-modules-apisupport-installer.license-file=license-jme.txt
 auxiliary.org-netbeans-modules-apisupport-installer.os-linux=true
 auxiliary.org-netbeans-modules-apisupport-installer.os-macosx=true