1 files changed, 1 insertions, 0 deletions

diff --git a/strio.h b/strio.h
index ab4d2bc..a99f8c3 100644
--- a/strio.h
+++ b/strio.h
@@ -3,6 +3,7 @@
 
 #include "str.h"
 #include "arena.h"
+#include <stdarg.h>
 
 int read_all(FILE *f, Str *buf, Arena *a);
 int next_line(Str *src, Str *line);