diff --git a/mbsebbs/transfer.c b/mbsebbs/transfer.c
index e922e435..6753175b 100644
--- a/mbsebbs/transfer.c
+++ b/mbsebbs/transfer.c
@@ -389,7 +389,7 @@ int upload(up_list **upload_list)
     struct timeval  starttime, endtime;
     struct timezone tz;
     unsigned long   Size = 0;
-    int		    err, Count = 0, rc = 0;
+    int		    err, Count = 0, rc = 0, want1k = FALSE;
     up_list	    *tmp, *ta;
 
     /*
@@ -427,7 +427,9 @@ int upload(up_list **upload_list)
 	    if (strncasecmp(sProtName, "ymodem", 6) == 0)
 		protocol = ZM_YMODEM;
 
-	    rc = zmrcvfiles();
+	    if (strstr(sProtName, "1K") || strstr(sProtName, "1k"))
+		want1k = TRUE;
+	    rc = zmrcvfiles(want1k);
 
 	    Syslog('b', "Begin dir processing");
 	    if ((dirp = opendir(".")) == NULL) {
diff --git a/mbsebbs/ymrecv.c b/mbsebbs/ymrecv.c
index 4c07e31e..295e29e7 100644
--- a/mbsebbs/ymrecv.c
+++ b/mbsebbs/ymrecv.c
@@ -59,13 +59,14 @@ int wcgetsec(size_t *, char *, unsigned int);
  * Length is indeterminate as long as less than Blklen
  * A null string represents no more files (YMODEM)
  */
-int wcrxpn(char *rpn)
+int wcrxpn(char *rpn, int want1k)
 {
     register int    c;
     size_t	    Blklen = 0;                /* record length of received packets */
 
+    Crcflg = want1k
     purgeline(0);
-    Syslog('x', "%s: wcrxpn()", protname());
+    Syslog('x', "%s: wcrxpn() crc=%s", protname(), Crcflg ? "true":"false");
 
 et_tu:
     Firstsec = TRUE;
diff --git a/mbsebbs/ymrecv.h b/mbsebbs/ymrecv.h
index f031405d..ee6cda41 100644
--- a/mbsebbs/ymrecv.h
+++ b/mbsebbs/ymrecv.h
@@ -8,7 +8,7 @@
 
 #define RETRYMAX 10
 
-int wcrxpn(char *);
+int wcrxpn(char *, int);
 int wcrx(void);
 
 #endif