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-rw-r--r--lib/stdlib/doc/src/sys.xml2
-rw-r--r--lib/stdlib/src/sys.erl4
2 files changed, 3 insertions, 3 deletions
diff --git a/lib/stdlib/doc/src/sys.xml b/lib/stdlib/doc/src/sys.xml
index f24e42bcee..64d8789016 100644
--- a/lib/stdlib/doc/src/sys.xml
+++ b/lib/stdlib/doc/src/sys.xml
@@ -308,7 +308,7 @@
format to the file. The events are formatted with a function that is
defined by the process that generated the event (with a call to
<seealso marker="#handle_debug/4"><c>handle_debug/4</c></seealso>).
- </p>
+ The file is opened with encoding UTF-8.</p>
</desc>
</func>
diff --git a/lib/stdlib/src/sys.erl b/lib/stdlib/src/sys.erl
index a6ecf03716..1003c7c02b 100644
--- a/lib/stdlib/src/sys.erl
+++ b/lib/stdlib/src/sys.erl
@@ -525,7 +525,7 @@ debug_cmd({log_to_file, false}, Debug) ->
{ok, NDebug};
debug_cmd({log_to_file, FileName}, Debug) ->
NDebug = close_log_file(Debug),
- case file:open(FileName, [write]) of
+ case file:open(FileName, [write,{encoding,utf8}]) of
{ok, Fd} ->
{ok, install_debug(log_to_file, Fd, NDebug)};
_Error ->
@@ -648,7 +648,7 @@ debug_options([{log, N} | T], Debug) when is_integer(N), N > 0 ->
debug_options([statistics | T], Debug) ->
debug_options(T, install_debug(statistics, init_stat(), Debug));
debug_options([{log_to_file, FileName} | T], Debug) ->
- case file:open(FileName, [write]) of
+ case file:open(FileName, [write,{encoding,utf8}]) of
{ok, Fd} ->
debug_options(T, install_debug(log_to_file, Fd, Debug));
_Error ->