diff --git a/stress/Dockerfile b/stress/Dockerfile
index 2ba2e3d..d403027 100644
--- a/stress/Dockerfile
+++ b/stress/Dockerfile
@@ -5,4 +5,4 @@ RUN apt-get update && apt-get install -y \
     stress \
     --no-install-recommends
 
-ENTRYPOINT [ "stress" ]
+CMD [ "stress" ]
diff --git a/ulimit/Dockerfile b/ulimit/Dockerfile
new file mode 100644
index 0000000..cc98fe9
--- /dev/null
+++ b/ulimit/Dockerfile
@@ -0,0 +1,9 @@
+FROM debian:jessie
+MAINTAINER Jessica Frazelle <jess@docker.com>
+
+RUN apt-get update && apt-get install -y \
+    ulimit \
+    --no-install-recommends
+
+ENTRYPOINT [ "ulimit" ]
+CMD [ "-n" ]