diff --git a/src/part2/bcd.md b/src/part2/bcd.md
index 9c0cdfd2..eb6926fb 100644
--- a/src/part2/bcd.md
+++ b/src/part2/bcd.md
@@ -97,7 +97,7 @@ First we load the score (stored in the wScore memory location) into register A.
 
 The `and %11110000` operation masks the lower nibble (the ones digit) so that only the upper nibble (the tens digit) remains in `A`.
 
-The `rrca` instructions perform a rotate right operation on `A` four times. This effectively shifts the tens digit to the lower nibble, making it ready to map to a digit tile.
+The `swap a` instruction swaps the upper nibble with the lower four bits, leaving the tens digit ready for us to display.
 
 We then add the `DIGIT_OFFSET` constant to the tens digit to calculate the tile address for the digit. This address is stored in the `SCORE_TENS` VRAM location, which updates the display to show the tens digit.
 
diff --git a/unbricked/bcd/main.asm b/unbricked/bcd/main.asm
index ba623a32..5f9747b7 100644
--- a/unbricked/bcd/main.asm
+++ b/unbricked/bcd/main.asm
@@ -309,10 +309,7 @@ IncreaseScorePackedBCD:
 UpdateScoreBoard:
     ld a, [wScore]      ; Get the Packed score
     and %11110000       ; Mask the lower nibble
-    rrca                ; Move the upper nibble to the lower nibble (divide by 16)
-    rrca
-    rrca
-    rrca
+    swap a              ; Move the upper nibble to the lower nibble (divide by 16)
     add a, DIGIT_OFFSET ; Offset + add to get the digit tile
     ld [SCORE_TENS], a  ; Show the digit on screen