diff --git a/ch06/regex/src/engine/evaluator.rs b/ch06/regex/src/engine/evaluator.rs
index 9ad5105..dbdf7c9 100644
--- a/ch06/regex/src/engine/evaluator.rs
+++ b/ch06/regex/src/engine/evaluator.rs
@@ -17,7 +17,7 @@ pub enum EvalError {
 
 impl Display for EvalError {
     fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
-        write!(f, "CodeGenError: {:?}", self)
+        write!(f, "EvalError: {:?}", self)
     }
 }