diff --git a/Talks/2019-05-CppNow/AlgorithmIntuition/Slide-078.cpp b/Talks/2019-05-CppNow/AlgorithmIntuition/Slide-078.cpp
index 28a98b6..d1664a1 100644
--- a/Talks/2019-05-CppNow/AlgorithmIntuition/Slide-078.cpp
+++ b/Talks/2019-05-CppNow/AlgorithmIntuition/Slide-078.cpp
@@ -1,7 +1,9 @@
 namespace my { 
    template<class I, class T> 
    auto count(I f, I l, T const& val) -> int { 
-      return std::reduce(f, l, 0, 
-         [val](auto a, auto b) { return a + (b == val); }); 
+      return std::transform_reduce(f, l, 0, 
+         [](auto a, auto b) { return a + b; },
+         [val](auto x) { return static_cast<int>(x == val); }
+      ); 
    } 
 }