diff --git a/include/nn/fs/fs_types.h b/include/nn/fs/fs_types.h
index 729c644..222e36e 100644
--- a/include/nn/fs/fs_types.h
+++ b/include/nn/fs/fs_types.h
@@ -1,5 +1,6 @@
 #pragma once
 
+#include <nn/nn.h>
 #include <nn/types.h>
 
 namespace nn::fs {