diff --git a/man2/getrlimit.2 b/man2/getrlimit.2
index 106f9ef28..589162b4b 100644
--- a/man2/getrlimit.2
+++ b/man2/getrlimit.2
@@ -542,6 +542,15 @@ For backward compatibility, glibc also provides
 .BR vlimit ().
 All new applications should be written using
 .BR setrlimit ().
+.SS C library/ kernel ABI differences
+Since version 2.13, the glibc
+.BR getrlimit ()
+and
+.BR setrlimit ()
+wrapper functions no longer invoke the corresponding system calls,
+but instead employ
+.BR prlimit (),
+for the reasons described in BUGS.
 .SH BUGS
 .\" FIXME prlimit() does not suffer
 .\" https://bugzilla.kernel.org/show_bug.cgi?id=5042