2 files changed, 7 insertions, 7 deletions

diff --git a/zix/tree.c b/zix/tree.c
index 5f8b7f6..e6698a7 100644
--- a/zix/tree.c
+++ b/zix/tree.c
@@ -632,7 +632,7 @@ zix_tree_begin(ZixTree* t)
 }
 
 ZIX_API ZixTreeIter*
-zix_tree_end(ZixTree* t)
+zix_tree_end(ZIX_UNUSED ZixTree* t)
 {
 	return NULL;
 }
@@ -652,7 +652,7 @@ zix_tree_rbegin(ZixTree* t)
 }
 
 ZIX_API ZixTreeIter*
-zix_tree_rend(ZixTree* t)
+zix_tree_rend(ZIX_UNUSED ZixTree* t)
 {
 	return NULL;
 }
diff --git a/zix/trie.c b/zix/trie.c
index 0c90601..9942206 100644
--- a/zix/trie.c
+++ b/zix/trie.c
@@ -205,16 +205,16 @@ zix_trie_add_child(ZixTrieNode** n_ptr,
 }
 
 ZIX_PRIVATE ZixTrieNode**
-trie_insert_tail(ZixTrieNode**  n_ptr,
-                 const uint8_t* str,
-                 const uint8_t* first,
-                 const size_t   len)
+trie_insert_tail(ZixTrieNode**           n_ptr,
+                 const uint8_t*          str,
+                 const uint8_t*          first,
+                 ZIX_UNUSED const size_t len)
 {
 	assert(first[0]);
 	ZixTrieNode* c = NULL;
 	while (first[0]) {
 		assert(zix_trie_node_check(*n_ptr));
-		
+
 		c               = realloc_node(NULL, 1);
 		c->str          = NULL;
 		c->num_children = 0;