diff --git a/src/main.rs b/src/main.rs
index b97d9f4dad09262b895a99087d07b298936a7339..5c9e3be225d4d96bd2ab9990d55ee8ca231d18c2 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -7,6 +7,7 @@ pub struct MyCpu {}
 
 #[derive(Debug, Error)]
 pub enum MyTickError {
+    /// TODO: change this
     #[error("Unknown Error: {0}")]
     Unknown(String),
 }
@@ -30,6 +31,7 @@ impl Cpu for MyCpu {
 
 #[derive(Debug, Error)]
 pub enum MyGetCpuError {
+    /// TODO: change this
     #[error("Unknown Error: {0}")]
     Unknown(String),
 }