From 02effdd81e311566e23e2b9182e201dbb1b65d3f Mon Sep 17 00:00:00 2001
From: Maxim Fedorov <dane@whatsapp.com>
Date: Mon, 29 Jul 2019 11:32:04 -0700
Subject: Fix documentation for erlang:is_map_key/2

This function is allowed to be used in guards.
---
 erts/doc/src/erlang.xml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/erts/doc/src/erlang.xml b/erts/doc/src/erlang.xml
index 0e82ceba7d..2183f75487 100644
--- a/erts/doc/src/erlang.xml
+++ b/erts/doc/src/erlang.xml
@@ -2553,6 +2553,7 @@ os_prompt%</pre>
 true
 > is_map_key(value,Map).
 false</code>
+        <p>Allowed in guard tests.</p>
       </desc>
     </func>
 
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