diff --git a/src/lib.rs b/src/lib.rs
index 7e02d4abf695bb07623089c9c0291c3dbffe1ad3..0da3a7c90b4421081a4d6afb9594c61c11cfdb6c 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -156,7 +156,7 @@ pub extern fn userspace_init() {
         }
     }
 
-    syscall::fexec_kernel(fd, args.into_boxed_slice(), vars.into_boxed_slice()).expect("failed to execute init");
+    syscall::fexec_kernel(fd, args.into_boxed_slice(), vars.into_boxed_slice(), None).expect("failed to execute init");
 
     panic!("init returned");
 }