diff --git a/jboss/bin/run.bat b/jboss/bin/run.bat
index 11c4a6b98b..ed593d2a1e 100644
--- a/jboss/bin/run.bat
+++ b/jboss/bin/run.bat
@@ -70,7 +70,7 @@ rem Add -server to the JVM options, if supported
 if not errorlevel == 1 (set JAVA_OPTS=%JAVA_OPTS% -server)
 
 rem JVM memory allocation pool parameters. Modify as appropriate.
-set JAVA_OPTS=%JAVA_OPTS% -Xms128m -Xmx512m -XX:MaxPermGen=128m
+set JAVA_OPTS=%JAVA_OPTS% -Xms128m -Xmx512m -XX:MaxPermSize=128m
 
 rem With Sun JVMs reduce the RMI GCs to once per hour
 set JAVA_OPTS=%JAVA_OPTS% -Dsun.rmi.dgc.client.gcInterval=3600000 -Dsun.rmi.dgc.server.gcInterval=3600000
diff --git a/jboss/bin/run.conf b/jboss/bin/run.conf
index 4e969da5a4..f9106e7c22 100644
--- a/jboss/bin/run.conf
+++ b/jboss/bin/run.conf
@@ -40,7 +40,7 @@
 # Specify options to pass to the Java VM.
 #
 if [ "x$JAVA_OPTS" = "x" ]; then
-   JAVA_OPTS="-Xms128m -Xmx512m -XX:MaxPermGen=128m -Dsun.rmi.dgc.client.gcInterval=3600000 -Dsun.rmi.dgc.server.gcInterval=3600000"
+   JAVA_OPTS="-Xms128m -Xmx512m -XX:MaxPermSize=128m -Dsun.rmi.dgc.client.gcInterval=3600000 -Dsun.rmi.dgc.server.gcInterval=3600000"
 fi
 
 # Sample JPDA settings for remote socket debuging