1 files changed, 5 insertions, 2 deletions
diff --git a/mjit.h b/mjit.h
index 256bf65a29..44cb6571b7 100644
--- a/mjit.h
+++ b/mjit.h
@@ -9,11 +9,14 @@
 #ifndef RUBY_MJIT_H
 #define RUBY_MJIT_H 1
 
-#include "ruby.h"
-#include "debug_counter.h"
+#include "ruby/config.h"
 
 #if USE_MJIT
 
+#include "debug_counter.h"
+#include "ruby.h"
+#include "vm_core.h"
+
 // Special address values of a function generated from the
 // corresponding iseq by MJIT:
 enum rb_mjit_iseq_func {