diff --git a/CHANGELOG.md b/CHANGELOG.md
index 420e6f2..1b9642e 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1 +1,7 @@
 # Change Log
+
+## v1.0.1 (2024-04-15)
+
+### Bug Fixes
+
+- tcpconn: check negative idle timeout to prevent unexpected behaviour (#17)
diff --git a/tcpconn.go b/tcpconn.go
index e8605b8..d9318b4 100644
--- a/tcpconn.go
+++ b/tcpconn.go
@@ -502,7 +502,7 @@ func (tc *tcpconn) SetIdleTimeout(d time.Duration) error {
 	if !tc.IsActive() {
 		return ErrConnClosed
 	}
-	if d == 0 {
+	if d <= 0 {
 		return nil
 	}
 	if tc.idleTimer != nil {