diff --git a/src/apple2.dd.c b/src/apple2.dd.c
index 1e3b1c4..baa129f 100644
--- a/src/apple2.dd.c
+++ b/src/apple2.dd.c
@@ -207,7 +207,7 @@ apple2_dd_position(apple2dd *drive)
     if (drive->data->size == _140K_) {
         int track_offset;
 
-        track_offset = (drive->track_pos % 2) * 4096;
+        track_offset = (drive->track_pos % 2) * ENC_ETRACK;
         return track_offset + drive->sector_pos;
     }