diff --git a/.gitignore b/.gitignore
index 7fc43c278..1bc5b4a87 100644
--- a/.gitignore
+++ b/.gitignore
@@ -7,6 +7,7 @@ venv
 *.pyc
 *.swp
 *.egg-info
+*.egg/*
 
 # Database files
 *.sqlite3
diff --git a/chatterbot/utils/stop_words.py b/chatterbot/utils/stop_words.py
index 0aff12c49..cf15481ad 100644
--- a/chatterbot/utils/stop_words.py
+++ b/chatterbot/utils/stop_words.py
@@ -11,10 +11,19 @@ class StopWordsManager(object):
     def __init__(self):
         from nltk.data import find
         from nltk import download
+        import os
 
         # Download the stopwords data only if it is not already downloaded
+        stopwords_path = None
+        if os.name == 'nt':
+            stopwords_path = os.path.join(os.getenv('APPDATA'), 'nltk_data',
+                                                'corpora', 'stopwords.zip')
+        else:
+            stopwords_path = os.path.join(os.path.expanduser('~'), 'nltk_data',
+                                                'corpora', 'stopwords.zip')
         try:
-            find('stopwords.zip')
+            if not os.path.isfile(stopwords_path):
+                find('stopwords.zip')
         except LookupError:
             download('stopwords')
 
diff --git a/chatterbot/utils/tokenizer.py b/chatterbot/utils/tokenizer.py
index 525fb3c6c..236e4528f 100644
--- a/chatterbot/utils/tokenizer.py
+++ b/chatterbot/utils/tokenizer.py
@@ -6,10 +6,19 @@ class Tokenizer(object):
     def __init__(self):
         from nltk.data import find
         from nltk import download
+        import os
 
         # Download the punkt data only if it is not already downloaded
+        punkt_path = None
+        if os.name == 'nt':
+            punkt_path = os.path.join(os.getenv('APPDATA'), 'nltk_data',
+                                                'tokenizers', 'punkt.zip')
+        else:
+            punkt_path = os.path.join(os.path.expanduser('~'), 'nltk_data',
+                                                'tokenizers', 'punkt.zip')
         try:
-            find('punkt.zip')
+            if not os.path.isfile(punkt_path):
+                find('punkt.zip')
         except LookupError:
             download('punkt')
 
diff --git a/chatterbot/utils/wordnet.py b/chatterbot/utils/wordnet.py
index 10a42e0d5..96fb84d17 100644
--- a/chatterbot/utils/wordnet.py
+++ b/chatterbot/utils/wordnet.py
@@ -11,9 +11,19 @@ class Wordnet(object):
     def __init__(self):
         from nltk.data import find
         from nltk import download
-
+        import os
+        
+        # Download the wordnet data only if it is not already downloaded
+        wordnet_path = None
+        if os.name == 'nt':
+            wordnet_path = os.path.join(os.getenv('APPDATA'), 'nltk_data',
+                                                'corpora', 'wordnet.zip')
+        else:
+            wordnet_path = os.path.join(os.path.expanduser('~'), 'nltk_data',
+                                                'corpora', 'wordnet.zip')
         try:
-            find('wordnet.zip')
+            if not os.path.isfile(wordnet_path):
+                find('wordnet.zip')
         except LookupError:
             download('wordnet')