diff --git a/include/tools/string.hxx b/include/tools/string.hxx
index 0c4571df23c1..76e271e9a557 100644
--- a/include/tools/string.hxx
+++ b/include/tools/string.hxx
@@ -26,7 +26,6 @@
  * THIS CODE IS DEPRECATED.  DO NOT USE IT IN ANY NEW CODE.
  ******************************************************************************/
 
-#define STRING_NOTFOUND    ((xub_StrLen)0xFFFF)
 #define STRING_LEN         ((xub_StrLen)0xFFFF)
 #define STRING_MAXLEN      ((xub_StrLen)0xFFFF)