diff --git a/e2e/code-generator/start.sh b/e2e/code-generator/start.sh
index f8257c1..cc805d2 100755
--- a/e2e/code-generator/start.sh
+++ b/e2e/code-generator/start.sh
@@ -1,4 +1,5 @@
 #!/bin/bash
+set -e
 
 docker-compose version
 
@@ -6,5 +7,5 @@ targets=(golang java python javascript curl)
 for target in "${targets[@]}"
 do
     docker-compose down
-    docker-compose up --build $target
+    docker-compose up --build $target --exit-code-from $target
 done