diff --git a/test/650_proxy_env_test.sh b/test/650_proxy_env_test.sh
index 20a65729..87144c40 100755
--- a/test/650_proxy_env_test.sh
+++ b/test/650_proxy_env_test.sh
@@ -6,7 +6,7 @@ start_suite "Configure the docker daemon for the proxy"
 
 weave_on $HOST1 launch-proxy
 
-CMD="run -e WEAVE_CIDR=10.2.1.4/24 $BASE_IMAGE $CHECK_ETHWE_UP"
+CMD="run -e WEAVE_CIDR=10.2.1.4/24 $SMALL_IMAGE $CHECK_ETHWE_UP"
 assert_raises "eval '$(weave_on $HOST1 proxy-env)' ; docker $CMD"
 assert_raises "docker $(weave_on $HOST1 proxy-config) $CMD"