diff --git a/Marlin/src/lcd/ultralcd.cpp b/Marlin/src/lcd/ultralcd.cpp
index 37e63cdae..9dc9ca1cd 100644
--- a/Marlin/src/lcd/ultralcd.cpp
+++ b/Marlin/src/lcd/ultralcd.cpp
@@ -430,7 +430,7 @@ bool MarlinUI::get_blink() {
 
           if (RRK(EN_KEYPAD_MIDDLE))  goto_screen(menu_move);
 
-          #if DISABLED(DELTA) && Z_HOME_DIR == -1
+          #if DISABLED(DELTA) && Z_HOME_DIR < 0
             if (RRK(EN_KEYPAD_F2))    _reprapworld_keypad_move(Z_AXIS,  1);
           #endif
 
diff --git a/Marlin/src/pins/pins_ARCHIM2.h b/Marlin/src/pins/pins_ARCHIM2.h
index df4e7d132..002b70e07 100644
--- a/Marlin/src/pins/pins_ARCHIM2.h
+++ b/Marlin/src/pins/pins_ARCHIM2.h
@@ -70,7 +70,7 @@
   #define E0_DIAG_PIN      78   // PB23
   #define E1_DIAG_PIN      25   // PD0
 
-  #if X_HOME_DIR == -1
+  #if X_HOME_DIR < 0
     #define X_MIN_PIN      X_DIAG_PIN
     #define X_MAX_PIN      32
   #else
@@ -78,7 +78,7 @@
     #define X_MAX_PIN      X_DIAG_PIN
   #endif
 
-  #if Y_HOME_DIR == -1
+  #if Y_HOME_DIR < 0
     #define Y_MIN_PIN      Y_DIAG_PIN
     #define Y_MAX_PIN      15
   #else
diff --git a/Marlin/src/pins/pins_EINSY_RETRO.h b/Marlin/src/pins/pins_EINSY_RETRO.h
index 9115ae037..42b330c9d 100644
--- a/Marlin/src/pins/pins_EINSY_RETRO.h
+++ b/Marlin/src/pins/pins_EINSY_RETRO.h
@@ -62,7 +62,7 @@
 
 #else
 
-  #if X_HOME_DIR == -1
+  #if X_HOME_DIR < 0
     #define X_MIN_PIN      X_DIAG_PIN
     #define X_MAX_PIN      81
   #else
@@ -70,7 +70,7 @@
     #define X_MAX_PIN      X_DIAG_PIN
   #endif
 
-  #if Y_HOME_DIR == -1
+  #if Y_HOME_DIR < 0
     #define Y_MIN_PIN      Y_DIAG_PIN
     #define Y_MAX_PIN      57
   #else