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-rw-r--r--lib/kernel/doc/src/os.xml11
1 files changed, 11 insertions, 0 deletions
diff --git a/lib/kernel/doc/src/os.xml b/lib/kernel/doc/src/os.xml
index 5e182de41d..9122267c40 100644
--- a/lib/kernel/doc/src/os.xml
+++ b/lib/kernel/doc/src/os.xml
@@ -177,6 +177,17 @@ format_utc_timestamp() ->
</desc>
</func>
<func>
+ <name name="unsetenv" arity="1"/>
+ <fsummary>Delete an environment variable</fsummary>
+ <desc>
+ <p>Deletes the environment variable <c><anno>VarName</anno></c>.</p>
+ <p>If Unicode filename encoding is in effect (see the <seealso
+ marker="erts:erl#file_name_encoding">erl manual
+ page</seealso>), the string (<c><anno>VarName</anno></c>) may
+ contain characters with codepoints > 255.</p>
+ </desc>
+ </func>
+ <func>
<name name="version" arity="0"/>
<fsummary>Return the Operating System version</fsummary>
<desc>