diff --git a/man5/proc.5 b/man5/proc.5
index 482cee193..045e4643f 100644
--- a/man5/proc.5
+++ b/man5/proc.5
@@ -2665,6 +2665,10 @@ bits and the kernel binary code).
 The sum of
 .IR LowFree + HighFree .
 .TP
+.IR MemAvailable " %lu (since Linux 3.14)"
+An estimate of how much memory is available for starting new
+applications, without swapping.
+.TP
 .IR Buffers " %lu"
 Relatively temporary storage for raw disk blocks that
 shouldn't get tremendously large (20MB or so).