diff --git a/docker/pulsar/Dockerfile b/docker/pulsar/Dockerfile
index 2125e02e4a151c0e3daee811d215e12859d7a483..6a3da0f9055c3099014a8067e99032ab0b33d43e 100644
--- a/docker/pulsar/Dockerfile
+++ b/docker/pulsar/Dockerfile
@@ -43,7 +43,7 @@ COPY --from=pulsar /pulsar /pulsar
 
 # Install some utilities
 RUN apt-get update \
-     && apt-get install -y netcat dnsutils \
+     && apt-get install -y netcat dnsutils less \
                  python2.7 python-setuptools \
                  python3-setuptools \
                  libreadline-gplv2-dev libncursesw5-dev libssl-dev libsqlite3-dev tk-dev libgdbm-dev libc6-dev libbz2-dev \