diff --git a/src/option.c b/src/option.c
index 16d05d8..7d79b3c 100644
--- a/src/option.c
+++ b/src/option.c
@@ -12439,6 +12439,10 @@
 can_bs(
     int		what)	    /* BS_INDENT, BS_EOL or BS_START */
 {
+#ifdef FEAT_JOB_CHANNEL
+    if (what == BS_START && bt_prompt(curbuf))
+	return FALSE;
+#endif
     switch (*p_bs)
     {
 	case '2':	return TRUE;