diff --git a/include/linux/filter.h b/include/linux/filter.h
index d1248f40..c050dcc 100644
--- a/include/linux/filter.h
+++ b/include/linux/filter.h
@@ -48,6 +48,7 @@
 extern int sk_get_filter(struct sock *sk, struct sock_filter __user *filter, unsigned len);
 
 #ifdef CONFIG_BPF_JIT
+#include <stdarg.h>
 #include <linux/linkage.h>
 #include <linux/printk.h>