diff --git a/libmaxsi/include/dirent.h b/libmaxsi/include/dirent.h
index 8945eff2..05d81d28 100644
--- a/libmaxsi/include/dirent.h
+++ b/libmaxsi/include/dirent.h
@@ -29,6 +29,7 @@
 
 __BEGIN_DECLS
 
+@include(size_t.h)
 @include(DIR.h)
 
 struct dirent