diff --git a/include/fmt/chrono.h b/include/fmt/chrono.h
index 7bfa0352ffde..6e0e17f37bd8 100644
--- a/include/fmt/chrono.h
+++ b/include/fmt/chrono.h
@@ -660,8 +660,6 @@ struct chrono_formatter {
 
   void on_second(numeric_system ns) {
     if (handle_nan_inf()) {
-      *out++ = '.';
-      handle_nan_inf();
       return;
     }