diff --git a/guide/english/react/state-vs-props/index.md b/guide/english/react/state-vs-props/index.md
index 2cff6b152b..cf22f0a3ee 100644
--- a/guide/english/react/state-vs-props/index.md
+++ b/guide/english/react/state-vs-props/index.md
@@ -24,6 +24,7 @@ See the below example to get an idea of state:
       super(props);
       this.state = {
         age:0
+      }
       this.incrementAge = this.incrementAge.bind(this)
     }