diff --git a/Marlin/src/pins/stm32f4/pins_FYSETC_S6.h b/Marlin/src/pins/stm32f4/pins_FYSETC_S6.h
index 6b6f644159..12261c3a7b 100644
--- a/Marlin/src/pins/stm32f4/pins_FYSETC_S6.h
+++ b/Marlin/src/pins/stm32f4/pins_FYSETC_S6.h
@@ -128,7 +128,7 @@
     #define Y_SERIAL_TX_PIN                 PE14
   #endif
   #ifndef Y_SERIAL_RX_PIN
-    #define Y_SERIAL_RX_PIN                 PE13
+    #define Y_SERIAL_RX_PIN                 PC4
   #endif
   #ifndef Z_SERIAL_TX_PIN
     #define Z_SERIAL_TX_PIN                 PD11