1 files changed, 3 insertions, 0 deletions
diff --git a/sprintf.c b/sprintf.c
index 85adc216f3..d370b8d8de 100644
--- a/sprintf.c
+++ b/sprintf.c
@@ -1253,6 +1253,9 @@ fmt_setup(char *buf, size_t size, int c, int flags, int width, int prec)
 #define FLOATING_POINT 1
 #define BSD__dtoa ruby_dtoa
 #define BSD__hdtoa ruby_hdtoa
+#ifdef RUBY_PRI_VALUE_MARK
+# define PRI_EXTRA_MARK RUBY_PRI_VALUE_MARK
+#endif
 #include "vsnprintf.c"
 
 typedef struct {