1 files changed, 2 insertions, 1 deletions
diff --git a/thread.c b/thread.c
index c7d48c01db..3064c68e4f 100644
--- a/thread.c
+++ b/thread.c
@@ -63,10 +63,11 @@
 
 /* for model 2 */
 
+#include "ruby/config.h"
+#include "ruby/io.h"
 #include "eval_intern.h"
 #include "gc.h"
 #include "timev.h"
-#include "ruby/io.h"
 #include "ruby/thread.h"
 #include "ruby/thread_native.h"
 #include "ruby/debug.h"