diff --git a/src/error.rs b/src/error.rs
index 71514d045..e41bcd178 100644
--- a/src/error.rs
+++ b/src/error.rs
@@ -13,6 +13,7 @@ pub enum EthcoreError {
 	FromHex(FromHexError),
 	BaseData(BaseDataError),
 	BadSize,
+	UnknownName
 }
 
 impl From<FromHexError> for EthcoreError {
@@ -39,4 +40,4 @@ macro_rules! assimilate {
     )
 }
 assimilate!(FromHex);
-assimilate!(BaseData);*/
\ No newline at end of file
+assimilate!(BaseData);*/