diff --git a/uisimulator/win32/lcd.c b/uisimulator/win32/lcd.c
index 2d1d80ccc7..21c79bd620 100644
--- a/uisimulator/win32/lcd.c
+++ b/uisimulator/win32/lcd.c
@@ -410,7 +410,7 @@ BITMAPINFO2 bmi =
 	DISP_X, -DISP_Y, 1, 8,
 	BI_RGB, 0, 0, 0, 2, 2,
 	UI_LCD_COLOR, 0, // green background color
-	0,  0,  0, 0 // black color
+	UI_LCD_BLACK, 0 // black color
 }; // bitmap information
 
 
diff --git a/uisimulator/win32/uisw32.h b/uisimulator/win32/uisw32.h
index c1001d7222..37edb0c4b8 100644
--- a/uisimulator/win32/uisw32.h
+++ b/uisimulator/win32/uisw32.h
@@ -25,7 +25,7 @@
 #define UI_WIDTH                    240 // width of GUI window
 #define UI_HEIGHT                   360 // height of GUI window
 #define UI_LCD_COLOR                46, 57, 49 // bkgnd color of LCD
-#define UI_LCD_BLACK                RGB (0, 0, 0) // black
+#define UI_LCD_BLACK                0, 0, 0 // black
 #define UI_LCD_POSX                 59 // x position of lcd
 #define UI_LCD_POSY                 95 // y position of lcd