1 files changed, 1 insertions, 1 deletions
diff --git a/object.c b/object.c
index a4450f17f1..ea2b47c769 100644
--- a/object.c
+++ b/object.c
@@ -11,7 +11,7 @@
 
 **********************************************************************/
 
-#include "ruby/config.h"
+#include "ruby/3/config.h"
 
 #include <ctype.h>
 #include <errno.h>