diff --git a/time/src/serde/mod.rs b/time/src/serde/mod.rs
index aa6cab714..653194cec 100644
--- a/time/src/serde/mod.rs
+++ b/time/src/serde/mod.rs
@@ -253,8 +253,6 @@ impl Serialize for Duration {
         #[cfg(feature = "serde-human-readable")]
         if serializer.is_human_readable() {
             return serializer.collect_str(&format_args!(
-                // Simply extracting sign and then calling `self.whole_seconds().abs()` will
-                // cause overflow on `i64::MIN` seconds.
                 "{}{}.{:>09}",
                 if self.is_negative() { "-" } else { "" },
                 self.whole_seconds().unsigned_abs(),