diff --git a/snippets/Collapse.md b/snippets/Collapse.md
index 16cb9dcb3..10b43948e 100644
--- a/snippets/Collapse.md
+++ b/snippets/Collapse.md
@@ -33,7 +33,7 @@ class Collapse extends React.Component {
   }
   
   toggleCollapse() {
-    this.setState({ collapsed: !this.state.collapsed });
+    this.setState(state => ({ collapsed: !state.collapsed });
   }
   
   render() {