1 files changed, 1 insertions, 0 deletions
diff --git a/Makefile b/Makefile
index 13c5533..bc03acd 100644
--- a/Makefile
+++ b/Makefile
@@ -48,6 +48,7 @@ LIB_INCLUDES := \
 	bsd/queue.h \
 	bsd/sys/cdefs.h \
 	bsd/sys/queue.h \
+	bsd/sys/tree.h \
 	bsd/err.h \
 	bsd/getopt.h \
 	bsd/inet.h \