diff --git a/sys/dev/isp/isp_freebsd.c b/sys/dev/isp/isp_freebsd.c
index d1c513ce9cbd..2f371d2f2e35 100644
--- a/sys/dev/isp/isp_freebsd.c
+++ b/sys/dev/isp/isp_freebsd.c
@@ -1254,6 +1254,15 @@ isp_watchdog(void *arg)
 			    isp->isp_name, handle, r));
 			xpt_done((union ccb *) xs);
 		} else if (XS_CMD_GRACE_P(xs)) {
+			/*
+			 * Make sure the command is *really* dead before we
+			 * release the handle (and DMA resources) for reuse.
+			 */
+			(void) isp_control(isp, ISPCTL_ABORT_CMD, arg);
+
+			/*
+			 * After this point, the comamnd is really dead.
+			 */
 			if (XS_XFRLEN(xs)) {
 				ISP_DMAFREE(isp, xs, handle);
                 	}