diff --git a/packages/cdk/lib/artifacts/batch-artifacts/ecs-additions/ecs-additions-common.sh b/packages/cdk/lib/artifacts/batch-artifacts/ecs-additions/ecs-additions-common.sh
index 4c2bc356..a5caef50 100755
--- a/packages/cdk/lib/artifacts/batch-artifacts/ecs-additions/ecs-additions-common.sh
+++ b/packages/cdk/lib/artifacts/batch-artifacts/ecs-additions/ecs-additions-common.sh
@@ -6,7 +6,7 @@ echo ECS_ENABLE_SPOT_INSTANCE_DRAINING=true >> /etc/ecs/ecs.config
 # cache already pulled container images and reduce network traffic
 echo ECS_IMAGE_PULL_BEHAVIOR=prefer-cached >> /etc/ecs/ecs.config
 # increase docker stop timeout so that containers can perform cleanup actions
-echo ECS_CONTAINER_STOP_TIMEOUT=60 >> /etc/ecs/ecs.config
+echo ECS_CONTAINER_STOP_TIMEOUT=60s >> /etc/ecs/ecs.config
 
 # add fetch and run batch helper script
 chmod a+x /opt/ecs-additions/fetch_and_run.sh