1 files changed, 1 insertions, 0 deletions
diff --git a/ruby.c b/ruby.c
index c6cfdf7e16..68d8f97a46 100644
--- a/ruby.c
+++ b/ruby.c
@@ -1370,6 +1370,7 @@ process_options(VALUE arg)
     else if (!rb_default_internal_encoding())
 	/* Freeze default_internal */
 	rb_enc_set_default_internal(Qnil);
+    rb_stdio_set_default_encoding();
 
     if (!tree) return Qfalse;