diff --git a/sdk_container/src/third_party/coreos-overlay/coreos-base/coreos-dev/coreos-dev-0.1.0.ebuild b/sdk_container/src/third_party/coreos-overlay/coreos-base/coreos-dev/coreos-dev-0.1.0.ebuild
index 824e2f6192..62cf71339e 100644
--- a/sdk_container/src/third_party/coreos-overlay/coreos-base/coreos-dev/coreos-dev-0.1.0.ebuild
+++ b/sdk_container/src/third_party/coreos-overlay/coreos-base/coreos-dev/coreos-dev-0.1.0.ebuild
@@ -44,6 +44,7 @@ RDEPEND="${RDEPEND}
 	coreos-base/gmerge
 	dev-lang/python
 	dev-python/dbus-python
+	dev-python/argparse
 	dev-util/strace
 	net-analyzer/netperf
 	net-analyzer/tcpdump