diff --git a/include/linux/if_addr.h b/include/linux/if_addr.h
index 94b32b4..7d4de85 100644
--- a/include/linux/if_addr.h
+++ b/include/linux/if_addr.h
@@ -49,6 +49,7 @@ enum {
 #define IFA_F_TENTATIVE		0x40
 #define IFA_F_PERMANENT		0x80
 #define IFA_F_MANAGETEMPADDR	0x100
+#define IFA_F_NOPREFIXROUTE	0x200
 
 struct ifa_cacheinfo {
 	__u32	ifa_prefered;
diff --git a/lib/route/addr.c b/lib/route/addr.c
index 188611a..97905f0 100644
--- a/lib/route/addr.c
+++ b/lib/route/addr.c
@@ -1057,6 +1057,7 @@ static const struct trans_tbl addr_flags[] = {
 	__ADD(IFA_F_TENTATIVE, tentative)
 	__ADD(IFA_F_PERMANENT, permanent)
 	__ADD(IFA_F_MANAGETEMPADDR, mngtmpaddr)
+	__ADD(IFA_F_NOPREFIXROUTE, noprefixroute)
 };
 
 char *rtnl_addr_flags2str(int flags, char *buf, size_t size)