diff --git a/src/kernel.rs b/src/kernel.rs
index 83424a4..68198c0 100644
--- a/src/kernel.rs
+++ b/src/kernel.rs
@@ -1,3 +1,4 @@
+use crate::ProtoV1;
 
 pub trait KernelProtocol: Sized {
     const KERNEL_MAGIC: [u8; 8];