diff --git a/images/ckan/2.9/setup/app/start_ckan.sh b/images/ckan/2.9/setup/app/start_ckan.sh
index fee6dad..f5d1b87 100755
--- a/images/ckan/2.9/setup/app/start_ckan.sh
+++ b/images/ckan/2.9/setup/app/start_ckan.sh
@@ -13,7 +13,12 @@ then
 fi
 
 # Set the common uwsgi options
-UWSGI_OPTS="--socket /tmp/uwsgi.sock --uid ckan --gid ckan --http :5000 --master --enable-threads --wsgi-file /srv/app/wsgi.py --module wsgi:application --lazy-apps --gevent 2000 -p 2 -L --gevent-early-monkey-patch --vacuum --harakiri 50 --callable application"
+if [ ${UWSGI_PROC_NO} == "0" ] || [ ${UWSGI_PROC_NO} == "null" ] || [ ${UWSGI_PROC_NO} == "" ];
+  then
+    echo setting USWGI proc to 2
+    ${UWSGI_PROC_NO}=2
+fi
+UWSGI_OPTS="--socket /tmp/uwsgi.sock --uid ckan --gid ckan --http :5000 --master --enable-threads --wsgi-file /srv/app/wsgi.py --module wsgi:application --lazy-apps --gevent 2000 -p ${UWSGI_PROC_NO} -L --gevent-early-monkey-patch --vacuum --harakiri 50 --callable application"
 
 # Run the prerun script to init CKAN and create the default admin user
 python prerun.py || { echo '[CKAN prerun] FAILED. Exiting...' ; exit 1; }