diff --git a/security/apparmor/lsm.c b/security/apparmor/lsm.c
index 42446a216f3b..7d1eeb084968 100644
--- a/security/apparmor/lsm.c
+++ b/security/apparmor/lsm.c
@@ -1598,12 +1598,14 @@ static unsigned int apparmor_ipv4_postroute(void *priv,
 	return apparmor_ip_postroute(priv, skb, state);
 }
 
+#if IS_ENABLED(CONFIG_IPV6)
 static unsigned int apparmor_ipv6_postroute(void *priv,
 					    struct sk_buff *skb,
 					    const struct nf_hook_state *state)
 {
 	return apparmor_ip_postroute(priv, skb, state);
 }
+#endif
 
 static const struct nf_hook_ops apparmor_nf_ops[] = {
 	{