diff --git a/btree_key.cpp b/btree_key.cpp
index 8f88334..5d1dc7e 100644
--- a/btree_key.cpp
+++ b/btree_key.cpp
@@ -1,5 +1,5 @@
 #include "btree_key.h"
-#include "btypes.h"
+#include "btree_types.h"
 #include <string.h>
 
 int