diff --git a/fedora-mongo/Dockerfile b/fedora-mongo/Dockerfile
index 6224d4b..6036c3b 100644
--- a/fedora-mongo/Dockerfile
+++ b/fedora-mongo/Dockerfile
@@ -2,4 +2,4 @@ FROM fedora
 RUN yum install --setopt=override_install_langs=en --setopt=tsflags=nodocs --setopt=keepcache=0 -y mongodb-server && mkdir -p /data/db && rm -rf /var/cache/yum
 EXPOSE 27017 28017
 VOLUME ["/data/db"]
-CMD "mongod"
+CMD mongod --noprealloc --smallfiles