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-rw-r--r--erts/emulator/sys/common/erl_sys_common_misc.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/erts/emulator/sys/common/erl_sys_common_misc.c b/erts/emulator/sys/common/erl_sys_common_misc.c
index 581c14b6c6..7338ffc963 100644
--- a/erts/emulator/sys/common/erl_sys_common_misc.c
+++ b/erts/emulator/sys/common/erl_sys_common_misc.c
@@ -60,6 +60,7 @@ int erts_get_user_requested_filename_encoding(void)
void erts_init_sys_common_misc(void)
{
#if defined(__WIN32__)
+ /* win_efile will totally fail if this is not set. */
filename_encoding = ERL_FILENAME_WIN_WCHAR;
#else
if (user_filename_encoding != ERL_FILENAME_UNKNOWN) {