diff --git a/beacon_node/execution_layer/src/engine_api.rs b/beacon_node/execution_layer/src/engine_api.rs
index 774eac5fe2..9c19e94c0e 100644
--- a/beacon_node/execution_layer/src/engine_api.rs
+++ b/beacon_node/execution_layer/src/engine_api.rs
@@ -79,7 +79,7 @@ impl From<reqwest::Error> for Error {
             e.status(),
             Some(StatusCode::UNAUTHORIZED) | Some(StatusCode::FORBIDDEN)
         ) {
-            Error::Auth(auth::Error::InvalidToken)
+            Error::Auth(auth::Error::InvalidToken(e.to_string()))
         } else {
             Error::HttpClient(e.into())
         }
diff --git a/beacon_node/execution_layer/src/engine_api/auth.rs b/beacon_node/execution_layer/src/engine_api/auth.rs
index af1ca195bd..3a27048b1a 100644
--- a/beacon_node/execution_layer/src/engine_api/auth.rs
+++ b/beacon_node/execution_layer/src/engine_api/auth.rs
@@ -14,7 +14,7 @@ pub const JWT_SECRET_LENGTH: usize = 32;
 #[derive(Debug)]
 pub enum Error {
     JWT(jsonwebtoken::errors::Error),
-    InvalidToken,
+    InvalidToken(String),
     InvalidKey(String),
 }