diff --git a/sys/dev/mcd/mcd.c b/sys/dev/mcd/mcd.c
index 8fbfdc4212d..7309f42d422 100644
--- a/sys/dev/mcd/mcd.c
+++ b/sys/dev/mcd/mcd.c
@@ -39,7 +39,7 @@
  * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  *
- *	$Id: mcd.c,v 1.14 1994/03/21 20:59:55 ats Exp $
+ *	$Id: mcd.c,v 1.15 1994/04/20 07:06:41 davidg Exp $
  */
 static char COPYRIGHT[] = "mcd-driver (C)1993 by H.Veit & B.Moore";
 
@@ -352,7 +352,7 @@ MCD_TRACE("strategy: drive not valid\n",0,0,0,0);
 		}
 	} else {
 		bp->b_pblkno = bp->b_blkno;
-		bp->b_cylin = 0;
+		bp->b_resid = 0;
 	}
 	
 	/* queue it */
diff --git a/sys/i386/isa/mcd.c b/sys/i386/isa/mcd.c
index 8fbfdc4212d..7309f42d422 100644
--- a/sys/i386/isa/mcd.c
+++ b/sys/i386/isa/mcd.c
@@ -39,7 +39,7 @@
  * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  *
- *	$Id: mcd.c,v 1.14 1994/03/21 20:59:55 ats Exp $
+ *	$Id: mcd.c,v 1.15 1994/04/20 07:06:41 davidg Exp $
  */
 static char COPYRIGHT[] = "mcd-driver (C)1993 by H.Veit & B.Moore";
 
@@ -352,7 +352,7 @@ MCD_TRACE("strategy: drive not valid\n",0,0,0,0);
 		}
 	} else {
 		bp->b_pblkno = bp->b_blkno;
-		bp->b_cylin = 0;
+		bp->b_resid = 0;
 	}
 	
 	/* queue it */