diff --git a/Dockerfile b/Dockerfile
index e7271478..29f75c40 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -55,7 +55,7 @@ RUN apt-get clean && apt-get -y update && apt-get -y install --no-install-recomm
 # install debug tools for testing environment
 RUN if [ "$INSTALL_DEBUG" ] ; then \
         apt-get -y update && apt-get -y install --no-install-recommends \
-        vim htop bmon net-tools iputils-ping procps \
+        vim htop bmon net-tools iputils-ping procps lsof \
         && pip install --user ipython pytest pytest-django \
     ; fi
 
diff --git a/deploy.sh b/deploy.sh
index 486da8ca..5f4aa931 100755
--- a/deploy.sh
+++ b/deploy.sh
@@ -34,7 +34,7 @@ function sync_blackhole {
         --exclude ".mypy_cache" \
         . -e ssh "$host":tubearchivist
 
-    ssh "$host" 'docker build -t bbilly1/tubearchivist:unstable tubearchivist'
+    ssh "$host" 'docker build --build-arg INSTALL_DEBUG=1 -t bbilly1/tubearchivist:unstable tubearchivist'
     ssh "$host" 'docker compose -f docker/docker-compose.yml up -d'
 
 }