diff --git a/listings/listing_4.25.cpp b/listings/listing_4.25.cpp
index 5ef25e5..291ac5c 100644
--- a/listings/listing_4.25.cpp
+++ b/listings/listing_4.25.cpp
@@ -1,6 +1,6 @@
 void foo(){
     unsigned const thread_count=...;
-    latch done(thread_count);                     
+    std::latch done(thread_count);                     
     my_data data[thread_count];
     std::vector<std::future<void> > threads;
     for(unsigned i=0;i<thread_count;++i)