diff --git a/man2/getrandom.2 b/man2/getrandom.2
index 07d80ac15..da49e5d87 100644
--- a/man2/getrandom.2
+++ b/man2/getrandom.2
@@ -164,6 +164,11 @@ man page.
 .B EINVAL
 An invalid flag was specified in
 .IR flags .
+.TP
+.B ENOSYS
+The glibc wrapper function for
+.BR getrandom ()
+determined that the underlying kernel does not implement this system call.
 .SH VERSIONS
 .BR getrandom ()
 was introduced in version 3.17 of the Linux kernel.