diff --git a/Makefile b/Makefile
index d8f070f..a8cce14 100644
--- a/Makefile
+++ b/Makefile
@@ -8,7 +8,7 @@ tetros.img: tetros.asm Makefile
 		rm -f tetros.img; exit 1; fi
 	nasm -f bin tetros.asm -o tetros.img
 
-run:
+run: tetros.img
 	@qemu-system-i386 -drive file=tetros.img,index=0,media=disk,format=raw
 
 clean:
diff --git a/README.md b/README.md
index 5fb7748..704821a 100644
--- a/README.md
+++ b/README.md
@@ -9,7 +9,7 @@ This is how it looks like:
 
 ![TetrOS - Tetris in 512 byte boot sector](https://github.com/daniel-e/mbr_tetris/blob/master/tetros_tetris_screenshot.png)
 
-And this is how the machine code looks:
+And this the complete machine code:
 
 ![TetrOS - Machine code](https://github.com/daniel-e/mbr_tetris/blob/master/code.png)
 
diff --git a/code.png b/code.png
index ce20326..b8617c3 100644
Binary files a/code.png and b/code.png differ
diff --git a/tetros.asm b/tetros.asm
index da44241..9dfbaef 100644
--- a/tetros.asm
+++ b/tetros.asm
@@ -63,7 +63,7 @@ ia: push cx
 	inc dh                           ; increment row
 	mov dl, field_left_col           ; set column
 	mov cx, field_width              ; width of box
-	mov bx, 0x88                     ; color
+	mov bx, 0x78                     ; color
 	call set_and_write
 	cmp dh, 21                       ; don't remove last line
 	je ib                            ; if last line jump
diff --git a/tetros.img b/tetros.img
index d4572e5..b459285 100644
Binary files a/tetros.img and b/tetros.img differ