diff --git a/inc/inc.ClassControllerCommon.php b/inc/inc.ClassControllerCommon.php
index f53946b02..51336d399 100644
--- a/inc/inc.ClassControllerCommon.php
+++ b/inc/inc.ClassControllerCommon.php
@@ -285,7 +285,7 @@ class SeedDMS_Controller_Common {
 						if(is_string($tmpret)) {
 							$ret = ($ret === null) ? $tmpret : (is_string($ret) ? $ret.$tmpret : array_merge($ret, array($tmpret)));
 						} elseif(is_array($tmpret)) { // || is_object($tmpret)) {
-							$ret = ($ret === null) ? $tmpret : (is_string($ret) ? array_merge(array($ret), $tmpret) : array_merge($ret, $tmpret));
+							$ret = ($ret === null) ? $tmpret : (is_string($ret) ? (array($ret) + $tmpret) : ($ret + $tmpret));
 						} else
 							$ret = $tmpret;
 					}
diff --git a/inc/inc.ClassViewCommon.php b/inc/inc.ClassViewCommon.php
index 737ac8c00..340c6c6a2 100644
--- a/inc/inc.ClassViewCommon.php
+++ b/inc/inc.ClassViewCommon.php
@@ -213,7 +213,7 @@ class SeedDMS_View_Common {
 						if(is_string($tmpret)) {
 							$ret = ($ret === null) ? $tmpret : (is_string($ret) ? $ret.$tmpret : array_merge($ret, array($tmpret)));
 						} elseif(is_array($tmpret) || is_object($tmpret)) {
-							$ret = ($ret === null) ? $tmpret : (is_string($ret) ? array_merge(array($ret), $tmpret) : array_merge($ret, $tmpret));
+							$ret = ($ret === null) ? $tmpret : (is_string($ret) ? (array($ret) + $tmpret) : ($ret + $tmpret));
 						} else
 							$ret = $tmpret;
 					}
diff --git a/views/bootstrap/class.Settings.php b/views/bootstrap/class.Settings.php
index 9dd44702a..93fe06450 100644
--- a/views/bootstrap/class.Settings.php
+++ b/views/bootstrap/class.Settings.php
@@ -351,7 +351,6 @@ class SeedDMS_View_Settings extends SeedDMS_Theme_Style {
 								$order = empty($conf['order']) ? '' : $conf['order'];
 								if(!empty($conf['options'])) {
 									$selections = empty($settings->_extensions[$extname][$confkey]) ? array() : explode(",", $settings->_extensions[$extname][$confkey]);
-									echo "<select id=\"extension_".$extname."_".$confkey."\" class=\"chzn-select\"".($allowempty ? " data-allow-clear=\"true\"" : "").($order ? " order=\"".$order."\"" : "")." name=\"extensions[".$extname."][".$confkey."][]\"".($multiple ? " multiple" : "").(!empty($conf['size']) ? " size=\"".$conf['size']."\"" : "")." data-placeholder=\"".getMLText("select_option")."\" style=\"width: 100%;\">";
 									if(is_array($conf['options'])) {
 										$options = $conf['options'];
 									} elseif(is_string($conf['options']) && $conf['options'] == 'hook') {
@@ -359,6 +358,7 @@ class SeedDMS_View_Settings extends SeedDMS_Theme_Style {
 									} else {
 										$options = [];
 									}
+									echo "<select id=\"extension_".$extname."_".$confkey."\" class=\"chzn-select\"".($allowempty ? " data-allow-clear=\"true\"" : "").($order ? " order=\"".$order."\"" : "")." name=\"extensions[".$extname."][".$confkey."][]\"".($multiple ? " multiple" : "").(!empty($conf['size']) ? " size=\"".$conf['size']."\"" : "")." data-placeholder=\"".getMLText("select_option")."\" style=\"width: 100%;\">";
 									if($allowempty)
 										echo "<option value=\"\"></option>";
 									foreach($options as $key=>$opt) {