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 17c1427397e6ec84fdd0ce49eddfd8c5ffb03b62)
@@ -39,4 +39,5 @@
 
 #include <assert.h>
+#include <stdbool.h>
 #include "os.h"