diff --git a/man/maintaining.texi b/man/maintaining.texi
index d0e726cbcbf..fdfc45f7a54 100644
--- a/man/maintaining.texi
+++ b/man/maintaining.texi
@@ -181,9 +181,9 @@ conventional name for a tags table file is @file{TAGS}.
   Each entry in the tags table records the name of one tag, the name of the
 file that the tag is defined in (implicitly), and the position in that
 file of the tag's definition.  When a file parsed by @code{etags} is
-created from a different source file, like a C file created by
-@code{bison} from a source Yacc file, the tags of the parsed file
-reference the source file.
+generated from a different source file, like a C file generated from a
+Cweb source file, the tags of the parsed file reference the source
+file.
 
   Just what names from the described files are recorded in the tags table
 depends on the programming language of the described file.  They