diff --git a/python-book/src/ch12-closures-and-iterators.md b/python-book/src/ch12-closures-and-iterators.md
index 6af7319..00732c1 100644
--- a/python-book/src/ch12-closures-and-iterators.md
+++ b/python-book/src/ch12-closures-and-iterators.md
@@ -306,8 +306,10 @@ struct Point {
 // Declarative macro (like a template)
 macro_rules! log_call {
     ($func_name:expr, $body:expr) => {
-        println!("Calling {}", $func_name);
-        $body
+        {
+            println!("Calling {}", $func_name);
+            $body
+        }
     };
 }