1 files changed, 2 insertions, 1 deletions
diff --git a/process.c b/process.c
index 79708b4d00..7bd9c1e5da 100644
--- a/process.c
+++ b/process.c
@@ -11,8 +11,9 @@
 
 **********************************************************************/
 
-#include "internal.h"
+#include "ruby/config.h"
 #include "ruby/io.h"
+#include "internal.h"
 #include "ruby/thread.h"
 #include "ruby/util.h"
 #include "vm_core.h"