diff --git a/man3/acosh.3 b/man3/acosh.3
index 45429bf45..ac34511eb 100644
--- a/man3/acosh.3
+++ b/man3/acosh.3
@@ -132,7 +132,7 @@ C99, POSIX.1-2001, POSIX.1-2008.
 The variant returning
 .I double
 also conforms to
-SVr4, 4.3BSD, C89.
+SVr4, 4.3BSD.
 .SH SEE ALSO
 .BR asinh (3),
 .BR atanh (3),
diff --git a/man3/asinh.3 b/man3/asinh.3
index 2c8dc2d28..8e211c1e8 100644
--- a/man3/asinh.3
+++ b/man3/asinh.3
@@ -117,7 +117,7 @@ C99, POSIX.1-2001, POSIX.1-2008.
 The variant returning
 .I double
 also conforms to
-SVr4, 4.3BSD, C89.
+SVr4, 4.3BSD.
 .SH SEE ALSO
 .BR acosh (3),
 .BR atanh (3),
diff --git a/man3/atanh.3 b/man3/atanh.3
index 463fe0237..b9c8ac33b 100644
--- a/man3/atanh.3
+++ b/man3/atanh.3
@@ -151,7 +151,7 @@ C99, POSIX.1-2001, POSIX.1-2008.
 The variant returning
 .I double
 also conforms to
-SVr4, 4.3BSD, C89.
+SVr4, 4.3BSD.
 .SH BUGS
 In glibc 2.9 and earlier,
 .\" Bug: http://sources.redhat.com/bugzilla/show_bug.cgi?id=6759