1 files changed, 1 insertions, 1 deletions
diff --git a/sprintf.c b/sprintf.c
index 5c437ad899..ce4ead8396 100644
--- a/sprintf.c
+++ b/sprintf.c
@@ -11,7 +11,7 @@
 
 **********************************************************************/
 
-#include "ruby/impl/config.h"
+#include "ruby/internal/config.h"
 
 #include <math.h>
 #include <stdarg.h>