diff --git a/net/openvswitch/conntrack.c b/net/openvswitch/conntrack.c
index 05249eb4508231186ba15b12a2330068b1d26b0d..df9c80bf621d68fb9c9414dea58b551e98d9e712 100644
--- a/net/openvswitch/conntrack.c
+++ b/net/openvswitch/conntrack.c
@@ -971,6 +971,8 @@ static int __ovs_ct_lookup(struct net *net, struct sw_flow_key *key,
 
 	ct = nf_ct_get(skb, &ctinfo);
 	if (ct) {
+		bool add_helper = false;
+
 		/* Packets starting a new connection must be NATted before the
 		 * helper, so that the helper knows about the NAT.  We enforce
 		 * this by delaying both NAT and helper calls for unconfirmed
@@ -988,16 +990,17 @@ static int __ovs_ct_lookup(struct net *net, struct sw_flow_key *key,
 		}
 
 		/* Userspace may decide to perform a ct lookup without a helper
-		 * specified followed by a (recirculate and) commit with one.
-		 * Therefore, for unconfirmed connections which we will commit,
-		 * we need to attach the helper here.
+		 * specified followed by a (recirculate and) commit with one,
+		 * or attach a helper in a later commit.  Therefore, for
+		 * connections which we will commit, we may need to attach
+		 * the helper here.
 		 */
-		if (!nf_ct_is_confirmed(ct) && info->commit &&
-		    info->helper && !nfct_help(ct)) {
+		if (info->commit && info->helper && !nfct_help(ct)) {
 			int err = __nf_ct_try_assign_helper(ct, info->ct,
 							    GFP_ATOMIC);
 			if (err)
 				return err;
+			add_helper = true;
 
 			/* helper installed, add seqadj if NAT is required */
 			if (info->nat && !nfct_seqadj(ct)) {
@@ -1007,11 +1010,13 @@ static int __ovs_ct_lookup(struct net *net, struct sw_flow_key *key,
 		}
 
 		/* Call the helper only if:
-		 * - nf_conntrack_in() was executed above ("!cached") for a
-		 *   confirmed connection, or
+		 * - nf_conntrack_in() was executed above ("!cached") or a
+		 *   helper was just attached ("add_helper") for a confirmed
+		 *   connection, or
 		 * - When committing an unconfirmed connection.
 		 */
-		if ((nf_ct_is_confirmed(ct) ? !cached : info->commit) &&
+		if ((nf_ct_is_confirmed(ct) ? !cached || add_helper :
+					      info->commit) &&
 		    ovs_ct_helper(skb, info->family) != NF_ACCEPT) {
 			return -EINVAL;
 		}