diff --git a/NLP_datasets/stop_word_1word.txt b/NLP_datasets/stop_word_1word.txt
index ca39fb7..3283406 100644
--- a/NLP_datasets/stop_word_1word.txt
+++ b/NLP_datasets/stop_word_1word.txt
@@ -29,3 +29,4 @@
  کلیه
  ط
  *هـ
+د