diff --git a/code/MemberTableField.php b/code/MemberTableField.php
index 15442a61..b4a0e8bc 100755
--- a/code/MemberTableField.php
+++ b/code/MemberTableField.php
@@ -116,7 +116,7 @@ class MemberTableField extends ComplexTableField {
 			foreach($SNG_member->searchableFields() as $fieldName => $fieldSpec) {
 				if(strpos($fieldName,'.') === false) $searchFilters[] = "`$fieldName` LIKE '%{$SQL_search}%'";
 			}
-			$this->sourceFilter = '(' . implode(' OR ', $searchFilters) . ')';
+			$this->sourceFilter[] = '(' . implode(' OR ', $searchFilters) . ')';
 		}
 
 		// filter by groups