diff --git a/security/smack/smack_lsm.c b/security/smack/smack_lsm.c
index 996c889564383a4725e57a769b24abb53225cd50..f02438cc6d295e832cc4df1fa024beb03fb515e5 100644
--- a/security/smack/smack_lsm.c
+++ b/security/smack/smack_lsm.c
@@ -52,7 +52,7 @@
 #define SMK_SENDING	2
 
 #ifdef SMACK_IPV6_PORT_LABELING
-LIST_HEAD(smk_ipv6_port_list);
+static LIST_HEAD(smk_ipv6_port_list);
 #endif
 static struct kmem_cache *smack_inode_cache;
 int smack_enabled;