diff --git a/iap/example_startup_script.sh b/iap/example_startup_script.sh
index 15e31df425fa..a534822ef230 100644
--- a/iap/example_startup_script.sh
+++ b/iap/example_startup_script.sh
@@ -1,3 +1,4 @@
+apt-get -y update
 apt-get -y install git
 apt-get -y install virtualenv
 git clone https://github.com/GoogleCloudPlatform/python-docs-samples