diff --git a/config b/config
index c15b2fb..8e71b9a 100644
--- a/config
+++ b/config
@@ -11,6 +11,8 @@ export PLUGIN_DATA_HOST_ROOT=$POSTGRES_HOST_ROOT
 export PLUGIN_DATASTORE_PORTS=(5432)
 export PLUGIN_DATASTORE_WAIT_PORT=5432
 export PLUGIN_DEFAULT_ALIAS="DATABASE"
+export PLUGIN_DISABLE_PULL=${POSTGRES_DISABLE_PULL:=}
+export PLUGIN_DISABLE_PULL_VARIABLE="POSTGRES_DISABLE_PULL"
 export PLUGIN_ALT_ALIAS="DOKKU_POSTGRES"
 export PLUGIN_IMAGE=$POSTGRES_IMAGE
 export PLUGIN_IMAGE_VERSION=$POSTGRES_IMAGE_VERSION
diff --git a/functions b/functions
index c1f56e9..7f16a00 100755
--- a/functions
+++ b/functions
@@ -30,8 +30,8 @@ service_create() {
   service_parse_args "${@:2}"
 
   if ! docker images | grep -e "^$PLUGIN_IMAGE " | grep -q " $PLUGIN_IMAGE_VERSION " ; then
-    if [[ "$POSTGRES_DISABLE_PULL" == "true" ]]; then
-      dokku_log_warn "POSTGRES_DISABLE_PULL environment variable detected. Not running pull command." 1>&2
+    if [[ "$PLUGIN_DISABLE_PULL" == "true" ]]; then
+      dokku_log_warn "${PLUGIN_DISABLE_PULL_VARIABLE} environment variable detected. Not running pull command." 1>&2
       dokku_log_warn "   docker pull ${IMAGE}" 1>&2
       dokku_log_warn "$PLUGIN_SERVICE service creation failed"
       exit 1
diff --git a/install b/install
index dbcf005..a5cf182 100755
--- a/install
+++ b/install
@@ -5,8 +5,8 @@ set -eo pipefail; [[ $DOKKU_TRACE ]] && set -x
 plugin-install() {
   pull-docker-image() {
     declare IMAGE="$1"
-    if [[ "$POSTGRES_DISABLE_PULL" == "true" ]]; then
-      echo " !     POSTGRES_DISABLE_PULL environment variable detected. Not running pull command." 1>&2
+    if [[ "$PLUGIN_DISABLE_PULL" == "true" ]]; then
+      echo " !     ${PLUGIN_DISABLE_PULL_VARIABLE} environment variable detected. Not running pull command." 1>&2
       echo " !        docker pull ${IMAGE}" 1>&2
       return
     fi