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-rw-r--r--net/ipv4/esp4.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/net/ipv4/esp4.c b/net/ipv4/esp4.c
index 1b18ce6..73bfcae 100644
--- a/net/ipv4/esp4.c
+++ b/net/ipv4/esp4.c
@@ -9,6 +9,7 @@
#include <linux/pfkeyv2.h>
#include <linux/random.h>
#include <net/icmp.h>
+#include <net/protocol.h>
#include <net/udp.h>
/* decapsulation data for use when post-processing */