diff --git a/eBook/04.4.md b/eBook/04.4.md
index 30d048b..3262bc2 100644
--- a/eBook/04.4.md
+++ b/eBook/04.4.md
@@ -80,7 +80,7 @@ var str string = "Go says hello to the world!"
 ```go
 var a = 15
 var b = false
-var str = “Go says hello to the world!”
+var str = "Go says hello to the world!"
 ```
 
 或：