diff --git a/doc/bison.texinfo b/doc/bison.texinfo
index 86f675da..89c3f031 100644
--- a/doc/bison.texinfo
+++ b/doc/bison.texinfo
@@ -37,6 +37,14 @@
 @end ifinfo
 @comment %**end of header
 
+@ifinfo
+@format
+START-INFO-DIR-ENTRY
+* bison: (bison).	GNU Project parser generator (yacc replacement).
+END-INFO-DIR-ENTRY
+@end format
+@end ifinfo
+
 @ifinfo
 This file documents the Bison parser generator.