Index: uspace/lib/bithenge/include/bithenge/tree.h
===================================================================
--- uspace/lib/bithenge/include/bithenge/tree.h	(revision b7fd2a02e4161f4edd38548e7f8456b8021549be)
+++ uspace/lib/bithenge/include/bithenge/tree.h	(revision bc1b297f15cd810ce68ce27f528b9e97ba351a1a)
@@ -39,4 +39,5 @@
 
 #include <assert.h>
+#include <stdbool.h>
 #include "os.h"