diff --git a/core/parse.c b/core/parse.c
index 57f6eb019..5fca1e777 100644
--- a/core/parse.c
+++ b/core/parse.c
@@ -1,5 +1,6 @@
 #include <stdio.h>
 #include <assert.h>
+#include <stdarg.h>
 #include "membuffer.h"
 #include <stdlib.h>
 #include <unistd.h>