1 files changed, 1 insertions, 0 deletions

diff --git a/re.c b/re.c
index 10fe8c68d3..d88427c791 100644
--- a/re.c
+++ b/re.c
@@ -11,6 +11,7 @@
 
 #include "ruby.h"
 #include "re.h"
+#include "regint.h"
 #include <ctype.h>
 
 #define MBCTYPE_ASCII         0