diff --git a/04.word2vec/README.cn.md b/04.word2vec/README.cn.md
index f9aac91005f69f63dbe392b8c219f2a93a1c77df..bee25b65923535005bce68ec37338a3ffbe4cdd4 100644
--- a/04.word2vec/README.cn.md
+++ b/04.word2vec/README.cn.md
@@ -223,7 +223,7 @@ def load_dict_and_embedding():
     with open("word_dict", "r") as f:
         for line in f:
             key, value = line.strip().split(" ")
-            word_dict[key] = value
+            word_dict[key] = int(value)
 
     embeddings = numpy.loadtxt("embedding_table", delimiter=",")
     return word_dict, embeddings
diff --git a/04.word2vec/README.md b/04.word2vec/README.md
index 71444ef4a97b6b13dfc311da9c925d3230923560..39b93063fb6dc4c811136a949c0c967488dde9d1 100644
--- a/04.word2vec/README.md
+++ b/04.word2vec/README.md
@@ -241,7 +241,7 @@ def load_dict_and_embedding():
     with open("word_dict", "r") as f:
         for line in f:
             key, value = line.strip().split(" ")
-            word_dict[key] = value
+            word_dict[key] = int(value)
 
     embeddings = numpy.loadtxt("embedding_table", delimiter=",")
     return word_dict, embeddings
diff --git a/04.word2vec/index.cn.html b/04.word2vec/index.cn.html
index f8a4a0bfd9450f2007848db5c1faa6486b152497..23729bf387e9eea06970aee13b29c846e680f4fb 100644
--- a/04.word2vec/index.cn.html
+++ b/04.word2vec/index.cn.html
@@ -265,7 +265,7 @@ def load_dict_and_embedding():
     with open("word_dict", "r") as f:
         for line in f:
             key, value = line.strip().split(" ")
-            word_dict[key] = value
+            word_dict[key] = int(value)
 
     embeddings = numpy.loadtxt("embedding_table", delimiter=",")
     return word_dict, embeddings
diff --git a/04.word2vec/index.html b/04.word2vec/index.html
index 8dce7e228382c076a9ea98c118888dea059117a7..3a17a95541a9672ff3740da256086a6d8f936eed 100644
--- a/04.word2vec/index.html
+++ b/04.word2vec/index.html
@@ -283,7 +283,7 @@ def load_dict_and_embedding():
     with open("word_dict", "r") as f:
         for line in f:
             key, value = line.strip().split(" ")
-            word_dict[key] = value
+            word_dict[key] = int(value)
 
     embeddings = numpy.loadtxt("embedding_table", delimiter=",")
     return word_dict, embeddings
diff --git a/04.word2vec/train.py b/04.word2vec/train.py
index 435af6a602c00aaf9cc2ac6c4a8084e265f1f2d2..6940c6eebfc9a5dca1af9deef9f8f93ac90f1635 100644
--- a/04.word2vec/train.py
+++ b/04.word2vec/train.py
@@ -34,7 +34,7 @@ def load_dict_and_embedding():
     with open("word_dict", "r") as f:
         for line in f:
             key, value = line.strip().split(" ")
-            word_dict[key] = value
+            word_dict[key] = int(value)
 
     embeddings = numpy.loadtxt("embedding_table", delimiter=",")
     return word_dict, embeddings