diff --git a/README.md b/README.md
index 93aeb01..da06955 100644
--- a/README.md
+++ b/README.md
@@ -503,6 +503,7 @@ func getVal(num int) (string, error) {
     if val == "" {
         return NewValue() // pretend function
     }
+    return val, err
 }
 
 func main() {