--- a/libidav/davqlparser.h	Sat Apr 04 21:47:40 2015 +0200
+++ b/libidav/davqlparser.h	Sat Apr 04 22:06:42 2015 +0200
@@ -213,6 +213,9 @@
 /** Depth must be greater than zero or infinity. */
 #define DAVQL_ERROR_INVALID_DEPTH 21
 
+/** The with-clause contains an attribute more than once. */
+#define DAVQL_ERROR_DUPLICATED_ATTRIBUTE 29
+
 /** A quote symbol (' or `) is missing. */
 #define DAVQL_ERROR_MISSING_QUOTE 50