diff --git a/ec2/spark-ec2 b/ec2/spark-ec2
index 454057aa0d279..31f9771223e51 100755
--- a/ec2/spark-ec2
+++ b/ec2/spark-ec2
@@ -19,4 +19,4 @@
 #
 
 cd "`dirname $0`"
-PYTHONPATH="./third_party/boto-2.4.1.zip/boto-2.4.1:$PYTHONPATH" python ./spark_ec2.py $@
+PYTHONPATH="./third_party/boto-2.4.1.zip/boto-2.4.1:$PYTHONPATH" python ./spark_ec2.py "$@"