diff --git a/real.go b/real.go
index 19a8e3d..b024975 100644
--- a/real.go
+++ b/real.go
@@ -11,7 +11,10 @@ type real struct {
 func (r *real) SetBaudRate(portPath string, baudrate int) error {
 	setBaudRateCMD := exec.Command("stty", "-F", portPath, fmt.Sprint(baudrate))
 	_, err := setBaudRateCMD.Output()
-    return errStack(ERR_SET_BAUDRATE_FAILED(), err)
+    if err != nil {
+        return errStack(ERR_SET_BAUDRATE_FAILED(), err)
+    }
+    return nil
 }
 
 func (r *real) CheckBaudRate(portPath string) (baudrate int, err error) {