diff --git a/Marlin/Configuration_adv.h b/Marlin/Configuration_adv.h
index 50cb5483f9..639fe79b0a 100644
--- a/Marlin/Configuration_adv.h
+++ b/Marlin/Configuration_adv.h
@@ -813,19 +813,19 @@
  *   - Use X2_USE_ENDSTOP to set the endstop plug by name. (_XMIN_, _XMAX_, _YMIN_, _YMAX_, _ZMIN_, _ZMAX_)
  */
 #if HAS_X2_STEPPER && DISABLED(DUAL_X_CARRIAGE)
-  //#define INVERT_X2_VS_X_DIR        // X2 direction signal is the opposite of X
-  //#define X_DUAL_ENDSTOPS           // X2 has its own endstop
+  #define INVERT_X2_VS_X_DIR        // X2 direction signal is the opposite of X
+  #define X_DUAL_ENDSTOPS           // X2 has its own endstop
   #if ENABLED(X_DUAL_ENDSTOPS)
-    #define X2_USE_ENDSTOP    _XMAX_  // X2 endstop board plug. Don't forget to enable USE_*_PLUG.
+    #define X2_USE_ENDSTOP    _E0DIAG_  // X2 endstop board plug. Don't forget to enable USE_*_PLUG.
     #define X2_ENDSTOP_ADJUSTMENT  0  // X2 offset relative to X endstop
   #endif
 #endif
 
 #if HAS_DUAL_Y_STEPPERS
-  //#define INVERT_Y2_VS_Y_DIR        // Y2 direction signal is the opposite of Y
-  //#define Y_DUAL_ENDSTOPS           // Y2 has its own endstop
+  #define INVERT_Y2_VS_Y_DIR        // Y2 direction signal is the opposite of Y
+  #define Y_DUAL_ENDSTOPS           // Y2 has its own endstop
   #if ENABLED(Y_DUAL_ENDSTOPS)
-    #define Y2_USE_ENDSTOP    _YMAX_  // Y2 endstop board plug. Don't forget to enable USE_*_PLUG.
+    #define Y2_USE_ENDSTOP    _E1DIAG_  // Y2 endstop board plug. Don't forget to enable USE_*_PLUG.
     #define Y2_ENDSTOP_ADJUSTMENT  0  // Y2 offset relative to Y endstop
   #endif
 #endif