diff --git a/annotations/yo/threading/examples/promise0.cc b/annotations/yo/threading/examples/promise0.cc
index 551cc964..8768595d 100644
--- a/annotations/yo/threading/examples/promise0.cc
+++ b/annotations/yo/threading/examples/promise0.cc
@@ -10,7 +10,7 @@ void compute(int *ret)
 int main()
 {
     int ret = 0;
-    std::thread(compute2, &ret).detach();
+    std::thread(compute, &ret).detach();
     cout << ret << '\n';
 }
 //=
diff --git a/annotations/yo/threading/examples/promise1.cc b/annotations/yo/threading/examples/promise1.cc
index 3ff7e6d4..83e406ed 100644
--- a/annotations/yo/threading/examples/promise1.cc
+++ b/annotations/yo/threading/examples/promise1.cc
@@ -4,7 +4,7 @@
 using namespace std;
 
 //code
-void compute1(promise<int> &ref)
+void compute(promise<int> &ref)
 {
     ref.set_value(9);
 }