1 files changed, 1 insertions, 1 deletions
diff --git a/io.c b/io.c
index 331420097a..7ce7148627 100644
--- a/io.c
+++ b/io.c
@@ -3958,7 +3958,7 @@ rb_io_syswrite(VALUE io, VALUE str)
         rb_io_check_closed(fptr);
     }
 
-    n = write(fptr->fd, RSTRING_PTR(str), RSTRING_LEN(str));
+    n = rb_write_internal(fptr->fd, RSTRING_PTR(str), RSTRING_LEN(str));
 
     if (n == -1) rb_sys_fail_path(fptr->pathv);