diff --git a/debian/ngcp-rtpengine-iptables-setup b/debian/ngcp-rtpengine-iptables-setup
index ddf99aa0e..56cf87e38 100755
--- a/debian/ngcp-rtpengine-iptables-setup
+++ b/debian/ngcp-rtpengine-iptables-setup
@@ -12,7 +12,7 @@ if [ -f "$DEFAULTS" ]; then
 fi
 
 MODPROBE_OPTIONS=""
-TABLE=$(/usr/libexec/rtpengine/rtpengine-get-table --config-file=$CONFIG_FILE)
+TABLE=$(/usr/libexec/rtpengine/rtpengine-get-table --config-file="${CONFIG_FILE-/etc/rtpengine/rtpengine.conf}")
 
 # Handle requested setuid/setgid.
 if ! test -z "$SET_USER"; then
diff --git a/el/ngcp-rtpengine-iptables-setup b/el/ngcp-rtpengine-iptables-setup
index f5baa9216..b9324c995 100755
--- a/el/ngcp-rtpengine-iptables-setup
+++ b/el/ngcp-rtpengine-iptables-setup
@@ -11,7 +11,7 @@ if [ -f "$DEFAULTS" ]; then
   . "$DEFAULTS" || true
 fi
 
-TABLE=$(/usr/libexec/rtpengine/rtpengine-get-table --config-file=$CONFIG_FILE)
+TABLE=$(/usr/libexec/rtpengine/rtpengine-get-table --config-file="${CONFIG_FILE-/etc/rtpengine/rtpengine.conf}")
 MODPROBE_OPTIONS=""
 
 # Handle requested setuid/setgid.
diff --git a/el/rtpengine.init b/el/rtpengine.init
index 1a8705735..cf19c48cd 100644
--- a/el/rtpengine.init
+++ b/el/rtpengine.init
@@ -33,9 +33,8 @@ rtpengine=/usr/sbin/rtpengine
 prog=rtpengine
 pidfile=${PIDFILE-/run/rtpengine.pid}
 lockfile=${LOCKFILE-/var/lock/subsys/rtpengine}
-configfile=${CONFIG_FILE-/etc/rtpengine/rtpengine.conf}
 cachefile=/var/lib/ngcp-rtpengine/rtpengine.cfg
-TABLE=$(/usr/libexec/rtpengine/rtpengine-get-table --config-file=$CONFIG_FILE)
+TABLE=$(/usr/libexec/rtpengine/rtpengine-get-table --config-file="${CONFIG_FILE-/etc/rtpengine/rtpengine.conf}")
 PIDFILE=${pidfile}
 RETVAL=0
 OPTS=""