diff --git a/installers/install_mongodb.sh b/installers/install_mongodb.sh
index f1767d8..1611d77 100755
--- a/installers/install_mongodb.sh
+++ b/installers/install_mongodb.sh
@@ -33,7 +33,7 @@
 }
 
 # main
-while getopts ":D:d:s:t:r:U:-: " o; do
+while getopts ":D:d:s:r:U:-: " o; do
     case "${o}" in
         D)
             OSM_DEVOPS="${OPTARG}"
@@ -44,9 +44,6 @@
         s)
             OSM_NAMESPACE="${OPTARG}"
             ;;
-        t)
-            OSM_DOCKER_TAG="${OPTARG}"
-            ;;
         r)
             DOCKER_REGISTRY_URL="${OPTARG}"
             ;;
@@ -74,14 +71,12 @@
 
 DEBUG_INSTALL=${DEBUG_INSTALL:-}
 OSM_DEVOPS=${OSM_DEVOPS:-"/usr/share/osm-devops"}
-OSM_DOCKER_TAG=${OSM_DOCKER_TAG:-"16"}
 OSM_HELM_WORK_DIR=${OSM_HELM_WORK_DIR:-"/etc/osm/helm"}
 OSM_NAMESPACE=${OSM_NAMESPACE:-"osm"}
 DOCKER_REGISTRY_URL=${DOCKER_REGISTRY_URL:-}
 DOCKER_USER=${DOCKER_USER:-"opensourcemano"}
 echo "DEBUG_INSTALL=$DEBUG_INSTALL"
 echo "OSM_DEVOPS=$OSM_DEVOPS"
-echo "OSM_DOCKER_TAG=$OSM_DOCKER_TAG"
 echo "OSM_HELM_WORK_DIR=$OSM_HELM_WORK_DIR"
 echo "OSM_NAMESPACE=$OSM_NAMESPACE"
 echo "DOCKER_REGISTRY_URL=$DOCKER_REGISTRY_URL"