diff --git a/tcpclient.go b/tcpclient.go
index 7330b42..28b96b1 100644
--- a/tcpclient.go
+++ b/tcpclient.go
@@ -330,7 +330,7 @@ func (sf *TCPClientProvider) Close() (err error) {
 
 func (sf *TCPClientProvider) setSerialConfig(serial.Config) {}
 
-func (sf *TCPClientProvider) setTCPTimeout(t time.Duration) {
+func (sf *TCPClientProvider) SetTCPTimeout(t time.Duration) {
 	sf.timeout = t
 }