diff --git a/src/lib.rs b/src/lib.rs
index 63b47a1..af883e9 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -29,6 +29,7 @@ pub trait EthController {
 }
 
 /// TODO: Improve these error types
+#[derive(Debug)]
 pub enum EthControllerError {
     SpiPortError,
     GeneralError,