1 files changed, 1 insertions, 1 deletions
diff --git a/sprintf.c b/sprintf.c
index ff1800e088..f726b7ebe6 100644
--- a/sprintf.c
+++ b/sprintf.c
@@ -11,7 +11,7 @@
 
 **********************************************************************/
 
-#include "ruby/config.h"
+#include "ruby/3/config.h"
 
 #include <math.h>
 #include <stdarg.h>