diff --git a/man2/open_by_handle_at.2 b/man2/open_by_handle_at.2
index 715a2f430..5c0e4d4f1 100644
--- a/man2/open_by_handle_at.2
+++ b/man2/open_by_handle_at.2
@@ -351,6 +351,7 @@ is not valid.
 This error will occur if, for example, the file has been deleted.
 .SH VERSIONS
 These system calls first appeared in Linux 2.6.39.
+Library support is provided in glibc since version 2.14.
 .SH CONFORMING TO
 These system calls are nonstandard Linux extensions.
 .SH NOTES