diff --git a/src/lib/project.conf b/src/lib/project.conf
index bf77474..4f10001 100644
--- a/src/lib/project.conf
+++ b/src/lib/project.conf
@@ -1,3 +1,4 @@
+subdirs=libc/include
 targets=libk
 as=$(CC)
 cc=$(CROSS)gcc