diff --git a/language-defs.ent b/language-defs.ent
index 6edc6deec1..ee4eda1ebd 100644
--- a/language-defs.ent
+++ b/language-defs.ent
@@ -10,3 +10,5 @@
 <!ENTITY PEAR              "PEAR: the PHP Extension and Application Repository">
 <!ENTITY FAQ               "FAQ: Frequently Asked Questions">
 <!ENTITY FAQabbrev         "FAQ">
+<!ENTITY FunctionIndex     "Function Index">
+