diff --git a/spacy/lang/vi/lex_attrs.py b/spacy/lang/vi/lex_attrs.py
index 9f931446f..0cbda4ffb 100644
--- a/spacy/lang/vi/lex_attrs.py
+++ b/spacy/lang/vi/lex_attrs.py
@@ -2,29 +2,29 @@ from ...attrs import LIKE_NUM
 
 
 _num_words = [
-    "không",    # Zero
-    "một",      # One
-    "mốt",      # Also one, irreplacable in niché cases for unit digit such as "51"="năm mươi mốt"
-    "hai",      # Two
-    "ba",       # Three
-    "bốn",      # Four
-    "tư",       # Also four, used in certain cases for unit digit such as "54"="năm mươi tư"
-    "năm",      # Five
-    "lăm",      # Also five, irreplacable in niché cases for unit digit such as "55"="năm mươi lăm"
-    "sáu",      # Six
-    "bảy",      # Seven
-    "bẩy",      # Also seven, old fashioned
-    "tám",      # Eight
-    "chín",     # Nine
-    "mười",     # Ten
-    "chục",     # Also ten, used for counting in tens such as "20 eggs"="hai chục trứng"
-    "trăm",     # Hundred
-    "nghìn",    # Thousand
-    "ngàn",     # Also thousand, used in the south
-    "vạn",      # Ten thousand
-    "triệu",    # Million
-    "tỷ",       # Billion
-    "tỉ"        # Also billion, used in combinatorics such as "tỉ_phú"="billionaire"
+    "không",  # Zero
+    "một",  # One
+    "mốt",  # Also one, irreplacable in niché cases for unit digit such as "51"="năm mươi mốt"
+    "hai",  # Two
+    "ba",  # Three
+    "bốn",  # Four
+    "tư",  # Also four, used in certain cases for unit digit such as "54"="năm mươi tư"
+    "năm",  # Five
+    "lăm",  # Also five, irreplacable in niché cases for unit digit such as "55"="năm mươi lăm"
+    "sáu",  # Six
+    "bảy",  # Seven
+    "bẩy",  # Also seven, old fashioned
+    "tám",  # Eight
+    "chín",  # Nine
+    "mười",  # Ten
+    "chục",  # Also ten, used for counting in tens such as "20 eggs"="hai chục trứng"
+    "trăm",  # Hundred
+    "nghìn",  # Thousand
+    "ngàn",  # Also thousand, used in the south
+    "vạn",  # Ten thousand
+    "triệu",  # Million
+    "tỷ",  # Billion
+    "tỉ",  # Also billion, used in combinatorics such as "tỉ_phú"="billionaire"
 ]