1 files changed, 2 insertions, 0 deletions

diff --git a/zix/trie.h b/zix/trie.h
index 9843460..5e38df6 100644
--- a/zix/trie.h
+++ b/zix/trie.h
@@ -19,6 +19,8 @@
 
 #include "zix/common.h"
 
+#include <stdio.h>
+
 /**
    @addtogroup zix
    @{