diff --git a/README.md b/README.md
index ef03755..46ba30a 100644
--- a/README.md
+++ b/README.md
@@ -66,14 +66,12 @@ w := os.Stderr
 logger := slog.New(
     tint.NewHandler(w, &tint.Options{
         ReplaceAttr: func(groups []string, a slog.Attr) slog.Attr {
-            err, ok := a.Value.Any().(error)
-            if !ok {
-                return a
+            if err, ok := a.Value.Any().(error); ok {
+                aErr := tint.Err(err)
+                aErr.Key = a.Key
+                return aErr
             }
-
-            aErr = tint.Err(err)
-            aErr.Key = a.Key
-            return aErr
+            return a
         },
     }),
 )
diff --git a/handler.go b/handler.go
index bc077f4..e235378 100644
--- a/handler.go
+++ b/handler.go
@@ -32,14 +32,12 @@ Create a new logger that writes all errors in red:
 	logger := slog.New(
 		tint.NewHandler(w, &tint.Options{
 			ReplaceAttr: func(groups []string, a slog.Attr) slog.Attr {
-				err, ok := a.Value.Any().(error)
-				if !ok {
-					return a
+				if err, ok := a.Value.Any().(error); ok {
+					aErr := tint.Err(err)
+					aErr.Key = a.Key
+					return aErr
 				}
-
-				aErr = tint.Err(err)
-				aErr.Key = a.Key
-				return aErr
+				return a
 			},
 		}),
 	)