diff --git a/tft.c b/tft.c
index a2c26d8..6d644f6 100644
--- a/tft.c
+++ b/tft.c
@@ -18,11 +18,11 @@
 #include "bitmaps.h"
 
 /*
- * Converts the given two pixel in 4-Bit greyscale to 16-Bit (5/6/5) color
+ * Converts the given two pixel in 4-Bit greyscale to 16-Bit RGB (5/6/5) color
  * stored in the given array of four bytes.
  * 
  * @param grey two pixel in 4-Bit greyscale
- * @param rgb two pixel in 16-Bit (5/6/5) color
+ * @param rgb two pixel in 16-Bit RGB (5/6/5) color
  */
 static void fourBitGreyTo16BitRGB(uint8_t grey, uint8_t *rgb) {
     uint8_t grey4 = ((grey >> 4) & 1);