diff --git a/examples/ch06/fig06_02.cpp b/examples/ch06/fig06_02.cpp
index 4615905..da996ae 100755
--- a/examples/ch06/fig06_02.cpp
+++ b/examples/ch06/fig06_02.cpp
@@ -18,8 +18,8 @@ int main() {
    std::array values2{1.1, 2.2, 3.3, 4.4};
 
    // output each array element's value
-   for (size_t i{0}; i < values.size(); ++i) {
-      std::cout << fmt::format("{}  ", values.at(i));
+   for (size_t i{0}; i < values2.size(); ++i) {
+      std::cout << fmt::format("{}  ", values2.at(i));
    }
 
    std::cout << "\n";