diff --git a/man2/membarrier.2 b/man2/membarrier.2
index 70e65b48d..5c29df37f 100644
--- a/man2/membarrier.2
+++ b/man2/membarrier.2
@@ -146,6 +146,14 @@ is non-zero.
 The
 .BR membarrier ()
 system call is not implemented by this kernel.
+.TP
+.BR ENOSYS " (since Linux 4.11)"
+.\" 907565337ebf998a68cb5c5b2174ce5e5da065eb
+The
+.BR membarrier ()
+system call is disabled because the
+.I nohz_full
+CPU parameter has been set.
 .SH VERSIONS
 The
 .BR membarrier ()