diff --git a/eBook/10.2.md b/eBook/10.2.md
index 49e3b05..35f9011 100644
--- a/eBook/10.2.md
+++ b/eBook/10.2.md
@@ -93,8 +93,8 @@ func main() {
 
     // NOT OK
     z := make(Bar) // 编译错误：cannot make type Bar
-    (*y).thingOne = "hello"
-    (*y).thingTwo = 1
+    (*z).thingOne = "hello"
+    (*z).thingTwo = 1
 
     // OK
     x := make(Foo)