diff --git a/CPP17.md b/CPP17.md
index 56b966f..ff17060 100644
--- a/CPP17.md
+++ b/CPP17.md
@@ -690,9 +690,10 @@ else { /* handle failure */ }
 ### Rounding functions for chrono durations and timepoints
 Provides abs, round, ceil, and floor helper functions for `std::chrono::duration` and `std::chrono::time_point`.
 ```c++
-using seconds = std::chrono::seconds;
-std::chrono::milliseconds d{ 5500 };
-std::chrono::abs(d); // == 5s
+using std::chrono::seconds;
+using std::chrono::milliseconds;
+milliseconds a{ -5500 };
+milliseconds d = std::chromo::abs(a); // 5500ms
 std::chrono::round<seconds>(d); // == 6s
 std::chrono::ceil<seconds>(d); // == 6s
 std::chrono::floor<seconds>(d); // == 5s
diff --git a/README.md b/README.md
index f4dfbae..426757f 100644
--- a/README.md
+++ b/README.md
@@ -1495,9 +1495,10 @@ else { /* handle failure */ }
 ### Rounding functions for chrono durations and timepoints
 Provides abs, round, ceil, and floor helper functions for `std::chrono::duration` and `std::chrono::time_point`.
 ```c++
-using seconds = std::chrono::seconds;
-std::chrono::milliseconds d{ 5500 };
-std::chrono::abs(d); // == 5s
+using std::chrono::seconds;
+using std::chrono::milliseconds;
+milliseconds a{ -5500 };
+milliseconds d = std::chromo::abs(a); // 5500ms
 std::chrono::round<seconds>(d); // == 6s
 std::chrono::ceil<seconds>(d); // == 6s
 std::chrono::floor<seconds>(d); // == 5s