diff --git a/chinook/management/_flatten.py b/chinook/management/_flatten.py
index 7974205..f19d2d0 100644
--- a/chinook/management/_flatten.py
+++ b/chinook/management/_flatten.py
@@ -58,6 +58,8 @@ class _FlattenContext:
 		return self._srcs_list
 
 	def inherit_target(self, target: Target) -> None:
+		for inc in target.incs.includes: self.append_inc(inc)
+		for drn in target.incs.libraries: self.append_dir(drn)
 		for opt in target.opts: self.append_opt(opt)
 		for dfn in target.defs: self.append_def(dfn)
 		for dep in target.deps: self.append_dep(dep)