diff --git a/aws-scripts/run_instances.sh b/aws-scripts/run_instances.sh
index fd79e6d26..5c641f11d 100755
--- a/aws-scripts/run_instances.sh
+++ b/aws-scripts/run_instances.sh
@@ -1,3 +1,4 @@
 #!/bin/bash -x
 cd /home/ec2-user/projects/src/harmony-benchmark
+go get github.com/go-stack/stack
 ./deploy_one_instance.sh global_nodes.txt
\ No newline at end of file