diff --git a/kitty/parser.c b/kitty/parser.c
index ed6ce0a03..a491d533f 100644
--- a/kitty/parser.c
+++ b/kitty/parser.c
@@ -1127,6 +1127,9 @@ accumulate_oth(Screen *screen, uint32_t ch, PyObject DUMP_UNUSED *dump_callback)
     switch(ch) {
         case ST:
             return true;
+        case DEL:
+        case NUL:
+            break;
         case ESC_ST:
             if (screen->parser_buf_pos > 0 && screen->parser_buf[screen->parser_buf_pos - 1] == ESC) {
                 screen->parser_buf_pos--;