diff --git a/src/port/quotes.c b/src/port/quotes.c
index 2ce60905a0bb40ca889aa06a03471143dc1a301a..3590528c4a5d7fcd076ea20462a5423879f308a2 100644
--- a/src/port/quotes.c
+++ b/src/port/quotes.c
@@ -1,3 +1,18 @@
+/*-------------------------------------------------------------------------
+ *
+ * quotes.c
+ *	  string quoting and escaping functions
+ *
+ * Portions Copyright (c) 1996-2013, PostgreSQL Global Development Group
+ * Portions Copyright (c) 1994, Regents of the University of California
+ *
+ *
+ * IDENTIFICATION
+ *	  src/port/quotes.c
+ *
+ *-------------------------------------------------------------------------
+ */
+
 #include "c.h"
 
 /*