diff --git a/include/linux/random.h b/include/linux/random.h
index cc67034..7b2adb3 100644
--- a/include/linux/random.h
+++ b/include/linux/random.h
@@ -59,6 +59,8 @@
 					__u16 sport, __u16 dport);
 extern __u32 secure_tcpv6_sequence_number(__u32 *saddr, __u32 *daddr,
 					  __u16 sport, __u16 dport);
+extern u64 secure_dccp_sequence_number(__u32 saddr, __u32 daddr,
+				       __u16 sport, __u16 dport);
 
 #ifndef MODULE
 extern struct file_operations random_fops, urandom_fops;