diff --git a/api/src/Storage/Base.php b/api/src/Storage/Base.php
index 072d3d2de7..91e683cc6d 100644
--- a/api/src/Storage/Base.php
+++ b/api/src/Storage/Base.php
@@ -1123,7 +1123,7 @@ class Base
 						$criteria[$col] = substr($criteria[$col],1);
 						$negate = true;
 					}
-					foreach(explode(' ',$criteria[$col]) as $crit)
+					foreach((is_array($criteria[$col]) ? $criteria[$col] : explode(' ',$criteria[$col])) as $crit)
 					{
 						$query[] = ($negate ? ' ('.$table_name.$db_col.' IS NULL OR ' : '').$table_name.$db_col.$cmp_op.
 							$this->db->quote($wildcard.str_replace(array('%','_','*','?'),array('\\%','\\_','%','_'),$crit).$wildcard).