diff --git a/subjects/addifpositive/README.md b/subjects/addifpositive/README.md
index 24d5e5b3..69426b97 100644
--- a/subjects/addifpositive/README.md
+++ b/subjects/addifpositive/README.md
@@ -26,6 +26,7 @@ func main() {
     fmt.Println(AddIfPositive(-1, 2))
     fmt.Println(AddIfPositive(-1, -2))
     fmt.Println(AddIfPositive(10,20))
+    fmt.Println(AddIfPositive(0,20))
 }
 ```
 
@@ -38,4 +39,5 @@ $ go run .
 0
 0
 30
+20
 ```