diff --git a/include/global_arrays.php b/include/global_arrays.php
index ef97d4192..98059f4ad 100644
--- a/include/global_arrays.php
+++ b/include/global_arrays.php
@@ -299,11 +299,14 @@ $messages = array(
 	'poller_nosync' => array(
 		'message' => __('Data Collector synchronization must be initiated from the main Cacti server.'),
 		'level' => MESSAGE_LEVEL_ERROR),
+	'poller_nomain' => array(
+		'message' => __('Synchronization does not include the Central Cacti Database server.'),
+		'level' => MESSAGE_LEVEL_ERROR),
 	'poller_nodupe' => array(
-		'message' => __('When saving a Remote Data Collector, the DB Hostname must be unique from all others.'),
+		'message' => __('When saving a Remote Data Collector, the Database Hostname must be unique from all others.'),
 		'level' => MESSAGE_LEVEL_ERROR),
 	'poller_dbhost' => array(
-		'message' => __('Your Remote Database Hostname must be something other than \'localhost\' for each Remote Data Collector..'),
+		'message' => __('Your Remote Database Hostname must be something other than \'localhost\' for each Remote Data Collector.'),
 		'level' => MESSAGE_LEVEL_ERROR),
 	'reports_save' => array(
 		'message' => __('Report Saved'),
diff --git a/pollers.php b/pollers.php
index 2a4f21db0..c0e010429 100644
--- a/pollers.php
+++ b/pollers.php
@@ -316,6 +316,9 @@ function form_actions() {
 					if ($poller['dbhost'] == 'localhost') {
 						raise_message('poller_dbhost');
 						continue;
+					} elseif ($item == 1) {
+						raise_message('poller_nomain');
+						continue;
 					} else {
 						replicate_out($item);