1 files changed, 1 insertions, 1 deletions
diff --git a/filter/trie.c b/filter/trie.c
index ffb9b99..2257c8b 100644
--- a/filter/trie.c
+++ b/filter/trie.c
@@ -272,7 +272,7 @@ static int
 trie_node_print(struct f_trie_node *t, char *buf, int blen)
 {
   if (t == NULL)
-    return;
+    return 0;
 
   int old_blen = blen;
   int wb = 0; // bsnprintf(buf, blen, "%I/%d accept %I\n", t->addr, t->plen, t->accept);