diff --git a/src/lib.rs b/src/lib.rs
index f392d3c..16b97bb 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -19,3 +19,5 @@ impl core::fmt::Display for GarbledError {
         f.write_str("Protocol Failure")
     }
 }
+
+impl core::error::Error for GarbledError {}