diff --git a/src/wt5001/wt5001.h b/src/wt5001/wt5001.h
index 32b4c8f0..11ad213e 100644
--- a/src/wt5001/wt5001.h
+++ b/src/wt5001/wt5001.h
@@ -340,7 +340,6 @@ namespace upm {
 
   protected:
     int ttyFd() { return m_ttyFd; };
-    int setTtyFd(int fd) { m_ttyFd = fd; };
 
   private:
     mraa_uart_context m_uart;