diff --git a/M2/Lesson_01/M2L1V6.ipynb b/M2/Lesson_01/M2L1V6.ipynb
index 44a2cb36..32c0121f 100644
--- a/M2/Lesson_01/M2L1V6.ipynb
+++ b/M2/Lesson_01/M2L1V6.ipynb
@@ -21,7 +21,7 @@
     "            SUBSTRING(extracted_content:content, POSITION('Customer Review' IN extracted_content:content) + LENGTH('Customer Review'))\n",
     "        ELSE NULL\n",
     "    END as review_text,\n",
-    "    CAST(CONCAT('2', REGEXP_SUBSTR(filename, '\\\\d+')) AS INTEGER) AS order_id,\n",
+    "    CAST(CONCAT('2', REGEXP_SUBSTR(filename, '\\\\\\d+')) AS INTEGER) AS order_id,\n",
     "FROM raw_customer_reviews;"
    ]
   },