diff --git a/ec2/spark_ec2.py b/ec2/spark_ec2.py
index 1ea2404598991e47a3062fc732ca0a02611716a9..f85342ada2e988a5097f259b744f0630b40c03a2 100755
--- a/ec2/spark_ec2.py
+++ b/ec2/spark_ec2.py
@@ -215,7 +215,7 @@ def launch_cluster(conn, opts, cluster_name):
     master_group.authorize(src_group=slave_group)
     master_group.authorize('tcp', 22, 22, '0.0.0.0/0')
     master_group.authorize('tcp', 8080, 8081, '0.0.0.0/0')
-    master_group.authorize('tcp', 19998, 19999, '0.0.0.0/0')
+    master_group.authorize('tcp', 19999, 19999, '0.0.0.0/0')
     master_group.authorize('tcp', 50030, 50030, '0.0.0.0/0')
     master_group.authorize('tcp', 50070, 50070, '0.0.0.0/0')
     master_group.authorize('tcp', 60070, 60070, '0.0.0.0/0')