diff --git a/sys/netgraph/netflow/netflow.c b/sys/netgraph/netflow/netflow.c
index ea1c785e125f..dfbb5075b7a8 100644
--- a/sys/netgraph/netflow/netflow.c
+++ b/sys/netgraph/netflow/netflow.c
@@ -503,7 +503,7 @@ hash6_insert(priv_p priv, struct flow6_hash_entry *hsh6, struct flow6_rec *r,
  */
 
 /* Allocate memory and set up flow cache */
-int
+void
 ng_netflow_cache_init(priv_p priv)
 {
 	struct flow_hash_entry *hsh;
@@ -546,8 +546,6 @@ ng_netflow_cache_init(priv_p priv)
 
 	ng_netflow_v9_cache_init(priv);
 	CTR0(KTR_NET, "ng_netflow startup()");
-
-	return (0);
 }
 
 /* Initialize new FIB table for v5 and v9 */
diff --git a/sys/netgraph/netflow/ng_netflow.c b/sys/netgraph/netflow/ng_netflow.c
index 74036fa56ef2..780a12748699 100644
--- a/sys/netgraph/netflow/ng_netflow.c
+++ b/sys/netgraph/netflow/ng_netflow.c
@@ -220,7 +220,7 @@ static int
 ng_netflow_constructor(node_p node)
 {
 	priv_p priv;
-	int error = 0, i;
+	int i;
 
 	/* Initialize private data */
 	priv = malloc(sizeof(*priv), M_NETGRAPH, M_WAITOK | M_ZERO);
@@ -241,8 +241,7 @@ ng_netflow_constructor(node_p node)
 	callout_init(&priv->exp_callout, CALLOUT_MPSAFE);
 
 	/* Allocate memory and set up flow cache */
-	if ((error = ng_netflow_cache_init(priv)))
-		return (error);
+	ng_netflow_cache_init(priv);
 
 	return (0);
 }
diff --git a/sys/netgraph/netflow/ng_netflow.h b/sys/netgraph/netflow/ng_netflow.h
index 8119ecce0f4d..66850009a5a4 100644
--- a/sys/netgraph/netflow/ng_netflow.h
+++ b/sys/netgraph/netflow/ng_netflow.h
@@ -458,7 +458,7 @@ struct flow6_hash_entry {
 			 ((t) << 3))	/* 8   */
 
 /* Prototypes for netflow.c */
-int	ng_netflow_cache_init(priv_p);
+void	ng_netflow_cache_init(priv_p);
 void	ng_netflow_cache_flush(priv_p);
 int	ng_netflow_fib_init(priv_p priv, int fib);
 void	ng_netflow_copyinfo(priv_p, struct ng_netflow_info *);