1 files changed, 1 insertions, 1 deletions
diff --git a/signal.c b/signal.c
index 650c59a084..30b9a79ea1 100644
--- a/signal.c
+++ b/signal.c
@@ -11,7 +11,7 @@
 
 **********************************************************************/
 
-#include "ruby/config.h"
+#include "ruby/3/config.h"
 
 #include <errno.h>
 #include <signal.h>