diff --git a/net/core/pktgen.c b/net/core/pktgen.c
index 45ba476a7e17221e0a56d08e1914143e6b4fd79a..a37ec53c554c6b52203e4fe6ec02255e7c15e064 100644
--- a/net/core/pktgen.c
+++ b/net/core/pktgen.c
@@ -2500,7 +2500,7 @@ static void mod_cur_headers(struct pktgen_dev *pkt_dev)
 
 
 #ifdef CONFIG_XFRM
-u32 pktgen_dst_metrics[RTAX_MAX + 1] = {
+static u32 pktgen_dst_metrics[RTAX_MAX + 1] = {
 
 	[RTAX_HOPLIMIT] = 0x5, /* Set a static hoplimit */
 };