diff --git a/safemysql.class.php b/safemysql.class.php
index e7d7278..bd79187 100644
--- a/safemysql.class.php
+++ b/safemysql.class.php
@@ -240,9 +240,6 @@ class SafeMySQL
 				case '?p':
 					$part = $value;
 					break;
-				case '??':
-					$part = '?';
-					break;
 			}
 			$query .= $part;
 		}