diff --git a/src/graphics/graphics.c b/src/graphics/graphics.c
index de00fdd..f7eabfc 100644
--- a/src/graphics/graphics.c
+++ b/src/graphics/graphics.c
@@ -905,8 +905,8 @@ void  __attribute__((optimize("no-unroll-loops"))) main_test_graphics (void)
 
     int address = 0;
     if (1) printf("buffer_lines_0_arrow = %d   address = %d   buffer_lines_size = %d   >>>", buffer_lines_0_arrow, address, buffer_lines_size);
-    buffer_lines_origin [(long) buffer_lines_0_arrow + address * 2 + 1] = buffer_lines_origin[(long) buffer_lines_size - 3];
-    buffer_lines_origin [(long) buffer_lines_0_arrow + address * 2 + 2] = buffer_lines_origin[(long) buffer_lines_size - 2];
+    buffer_lines_origin [(long) buffer_lines_0_arrow + address * 2 + 0] = buffer_lines_origin[(long) buffer_lines_size - 2];
+    buffer_lines_origin [(long) buffer_lines_0_arrow + address * 2 + 1] = buffer_lines_origin[(long) buffer_lines_size - 1];
 
     buffer_lines_size -= 2;