diff --git a/ch13/ch13-03.md b/ch13/ch13-03.md
index 5e290e1..6c88c5b 100644
--- a/ch13/ch13-03.md
+++ b/ch13/ch13-03.md
@@ -74,7 +74,7 @@ func Equal(x, y interface{}) bool {
 
 type comparison struct {
 	x, y unsafe.Pointer
-	treflect.Type
+	t reflect.Type
 }
 ```