diff --git a/wp-ffpc-backend.php b/wp-ffpc-backend.php
index f6b9970..c684e66 100644
--- a/wp-ffpc-backend.php
+++ b/wp-ffpc-backend.php
@@ -62,7 +62,7 @@ if (!class_exists('WP_FFPC_Backend')) {
 		public function __construct( $config, $network = false ) {
 
 			/* no config, nothing is going to work */
-			if ( empty ( $this->options ) ) {
+			if ( empty ( $config ) ) {
 				return false;
 				//die ( __translate__ ( 'WP-FFPC Backend class received empty configuration array, the plugin will not work this way', $this->plugin_constant ) );
 			}
@@ -406,7 +406,8 @@ if (!class_exists('WP_FFPC_Backend')) {
 		 *
 		 */
 		public function get_servers () {
-			return $this->options['servers'];
+			$r = isset ( $this->options['servers'] ) ? $this->options['servers'] : '';
+			return $r;
 		}
 
 		/**
diff --git a/wp-ffpc-class.php b/wp-ffpc-class.php
index 3a30ce0..d03fbdd 100644
--- a/wp-ffpc-class.php
+++ b/wp-ffpc-class.php
@@ -884,8 +884,13 @@ if ( ! class_exists( 'WP_FFPC' ) ) {
 			/* set upstream servers from configured servers, best to get from the actual backend */
 			$servers = $this->backend->get_servers();
 			$nginx_servers = '';
-			foreach ( array_keys( $servers ) as $server ) {
-				$nginx_servers .= "		server ". $server .";\n";
+			if ( is_array ( $servers )) {
+				foreach ( array_keys( $servers ) as $server ) {
+					$nginx_servers .= "		server ". $server .";\n";
+				}
+			}
+			else {
+				$nginx_servers .= "		server ". $servers .";\n";
 			}
 			$nginx = str_replace ( 'MEMCACHED_SERVERS' , $nginx_servers , $nginx );