diff --git a/sbt.bat b/sbt.bat
index 7e90f12..3b0c31e 100644
--- a/sbt.bat
+++ b/sbt.bat
@@ -1,2 +1,2 @@
 set SCRIPT_DIR=%~dp0
-java -Dsbt.log.noformat=true -XX:+CMSClassUnloadingEnabled -XX:MaxPermSize=256m -Xmx512M -Xss2M -Xdebug -Xrunjdwp:transport=dt_socket,server=y,suspend=n,address=5005 -jar "%SCRIPT_DIR%\sbt-launch-0.13.8.jar" %*
+java %JAVA_OPTS% -Dsbt.log.noformat=true -XX:+CMSClassUnloadingEnabled -XX:MaxPermSize=256m -Xmx512M -Xss2M -Xdebug -Xrunjdwp:transport=dt_socket,server=y,suspend=n,address=5005 -jar "%SCRIPT_DIR%\sbt-launch-0.13.8.jar" %*
diff --git a/sbt.sh b/sbt.sh
index eae1ce3..a9247ab 100755
--- a/sbt.sh
+++ b/sbt.sh
@@ -1,2 +1,2 @@
 #!/bin/sh
-java -Dsbt.log.noformat=true -XX:+CMSClassUnloadingEnabled -XX:MaxPermSize=256m -Xmx512M -Xss2M -Xdebug -Xrunjdwp:transport=dt_socket,server=y,suspend=n,address=5005 -jar `dirname $0`/sbt-launch-0.13.8.jar "$@"
+java $JAVA_OPTS -Dsbt.log.noformat=true -XX:+CMSClassUnloadingEnabled -XX:MaxPermSize=256m -Xmx512M -Xss2M -Xdebug -Xrunjdwp:transport=dt_socket,server=y,suspend=n,address=5005 -jar `dirname $0`/sbt-launch-0.13.8.jar "$@"