[Bug #19584] Register global variables before assignment

1 files changed, 3 insertions, 4 deletions

diff --git a/io.c b/io.c
index 1b7cdc86f5..d0af749231 100644
--- a/io.c
+++ b/io.c
@@ -15533,13 +15533,12 @@ Init_IO(void)
     rb_gvar_ractor_local("$>");
     rb_gvar_ractor_local("$stderr");
 
-    rb_stdin  = rb_io_prep_stdin();
-    rb_stdout = rb_io_prep_stdout();
-    rb_stderr = rb_io_prep_stderr();
-
     rb_global_variable(&rb_stdin);
+    rb_stdin  = rb_io_prep_stdin();
     rb_global_variable(&rb_stdout);
+    rb_stdout = rb_io_prep_stdout();
     rb_global_variable(&rb_stderr);
+    rb_stderr = rb_io_prep_stderr();
 
     orig_stdout = rb_stdout;
     orig_stderr = rb_stderr;