diff --git a/doc/simh.doc b/doc/simh.doc
index 68683d74..6b9f7fff 100644
Binary files a/doc/simh.doc and b/doc/simh.doc differ
diff --git a/scp.c b/scp.c
index 7fe0bbe1..72d90e4f 100644
--- a/scp.c
+++ b/scp.c
@@ -7223,6 +7223,7 @@ for (i = 0; i < (device_count + sim_internal_device_count); i++) {/* loop thru d
         WRITE_I (uptr->buf);
         WRITE_I (uptr->capac);                          /* [V3.5] capacity */
         fprintf (sfile, "%.0f\n", uptr->usecs_remaining);/* [V4.0] remaining wait */
+        WRITE_I (uptr->pos);
         if (uptr->flags & UNIT_ATT) {
             fputs (uptr->filename, sfile);
             if ((uptr->flags & UNIT_BUF) &&             /* writable buffered */
@@ -7478,6 +7479,7 @@ for ( ;; ) {                                            /* device loop */
         if (v40) {
             READ_S (buf);
             sscanf (buf, "%lf", &uptr->usecs_remaining);
+            READ_I (uptr->pos);
             }
         if (!v32)
             flg = ((flg & UNIT_UFMASK_31) << (UNIT_V_UF - UNIT_V_UF_31)) |