diff --git a/apps/plugins/fractals/mandelbrot_set.c b/apps/plugins/fractals/mand
index ad5a172..da3a067 100644
--- a/apps/plugins/fractals/mandelbrot_set.c
+++ b/apps/plugins/fractals/mandelbrot_set.c
@@ -32,7 +32,7 @@ static fb_data imgbuffer[LCD_HEIGHT];
 #endif

 #ifdef USEGSLIB
-#define LCOLOR(iter) (iter << 5)
+#define LCOLOR(iter) ((iter ^ 15) << 4)
 #else
 /*
  * Spread iter's colors over color range.