diff --git a/src/superio/winbond/w83627thg/early_serial.c b/src/superio/winbond/w83627thg/early_serial.c
index cc84738e49..6ab178b243 100644
--- a/src/superio/winbond/w83627thg/early_serial.c
+++ b/src/superio/winbond/w83627thg/early_serial.c
@@ -37,16 +37,6 @@ void pnp_exit_ext_func_mode(device_t dev)
 	outb(0xaa, port);
 }
 
-void w83627thg_enable_serial(device_t dev, u16 iobase)
-{
-	pnp_enter_ext_func_mode(dev);
-	pnp_set_logical_device(dev);
-	pnp_set_enable(dev, 0);
-	pnp_set_iobase(dev, PNP_IDX_IO0, iobase);
-	pnp_set_enable(dev, 1);
-	pnp_exit_ext_func_mode(dev);
-}
-
 #ifndef __ROMCC__
 void w83627thg_set_clksel_48(device_t dev) {
 	u8 reg8;
diff --git a/src/superio/winbond/w83627thg/w83627thg.h b/src/superio/winbond/w83627thg/w83627thg.h
index a5cc450052..ec857d3910 100644
--- a/src/superio/winbond/w83627thg/w83627thg.h
+++ b/src/superio/winbond/w83627thg/w83627thg.h
@@ -38,6 +38,5 @@ void pnp_enter_ext_func_mode(device_t dev);
 void pnp_exit_ext_func_mode(device_t dev);
 
 void w83627thg_set_clksel_48(device_t dev);
-void w83627thg_enable_serial(device_t dev, u16 iobase);
 
 #endif /* SUPERIO_WINBOND_W83627THG_W83627THG_H */