diff --git a/core/um-fields.php b/core/um-fields.php
index 04c43ed0..ee6a0a3a 100644
--- a/core/um-fields.php
+++ b/core/um-fields.php
@@ -1641,10 +1641,13 @@ class UM_Fields {
 						$output .= $this->field_label($label, $key, $data);
 						}
 
+						$use_keyword = apply_filters('um_multiselect_option_value', 0, $data['type'] );
+
 						$output .= '<div class="um-field-area">';
 
-						$output .= '<select multiple="multiple" name="'.$key.'[]" id="'.$key.'" data-maxsize="'. $max_selections . '" data-validate="'.$validate.'" data-key="'.$key.'" class="'.$this->get_class($key, $data, $class).'" style="width: 100%" data-placeholder="'.$placeholder.'">';
+						$output .= '<select multiple="multiple" name="'.$key.'[]" id="'.$key.'" data-maxsize="'. $max_selections . '" data-validate="'.$validate.'" data-key="'.$key.'" class="'.$this->get_class($key, $data, $class).' um-user-keyword_'.$use_keyword.'" style="width: 100%" data-placeholder="'.$placeholder.'">';
 
+						
 						if ( isset($options) && $options == 'builtin'){
 							$options = $ultimatemember->builtin->get ( $filter );
 						}
@@ -1662,8 +1665,7 @@ class UM_Fields {
 						// add an empty option!
 						$output .= '<option value=""></option>';
 						
-						$use_keyword = apply_filters('um_multiselect_option_value', 0, $data['type'] );
-
+						
                         // add options
 						foreach( $options as $k => $v ) {
 
diff --git a/core/um-filters-members.php b/core/um-filters-members.php
index 5233f0ee..4747ac6a 100644
--- a/core/um-filters-members.php
+++ b/core/um-filters-members.php
@@ -83,8 +83,14 @@
 						$operator = 'LIKE';
 					}
 
-					if ( in_array( $ultimatemember->fields->get_field_type( $field ), array('checkbox','multiselect') ) ) {
+					$arr_filter_field_types = array('checkbox','multiselect');
+					$arr_field_types = apply_filters('um_search_filter_field_types', $arr_filter_field_types );
+					
+					if ( in_array( $ultimatemember->fields->get_field_type( $field ), $arr_field_types ) ) {
 						$operator = 'LIKE';
+						if( ! empty(  $value ) ){
+							$value = serialize( strval( $value ) );
+						}
 					}
 
 					if ( $value && $field != 'um_search' && $field != 'page_id' ) {
@@ -117,6 +123,7 @@
 		if ( count ($query_args['meta_query']) == 1 ) {
 			unset( $query_args['meta_query'] );
 		}
+
 		return $query_args;
 
 	}