diff --git a/podman-matrix/10_install.sh b/podman-matrix/10_install.sh
index 198debd..2581018 100755
--- a/podman-matrix/10_install.sh
+++ b/podman-matrix/10_install.sh
@@ -18,6 +18,10 @@ if [[ ! -d ~/.local/share/containers/storage/volumes/${dbvolume} ]]; then
     echo "Error : conf volume ${dbvolume} does not exists. Consider running 05_freshinstall.sh if this is the first install."
     exit 1
 fi
+
+# FAIL if pod exists
+ensure_pod_not_exists ${pod_name}
+
 podman pod create --publish 8086:8008 --name ${pod_name} && \
 podman run -d --name ${db_container_name} --pod ${pod_name} \
   --mount type=volume,src=${dbvolume},dst=/var/lib/postgresql/data/ \
@@ -31,4 +35,3 @@ podman run -d --name ${container_name} --pod ${pod_name} \
 echo "Pod built and starting
 run 'podman logs -f synapse synapse-db' to show initialisation status
 then stop pod with 'podman pod stop ${pod_name}'"
-