diff --git a/youtube_dl/FileDownloader.py b/youtube_dl/FileDownloader.py
index 63b29a837c..2bc0b0d4e9 100644
--- a/youtube_dl/FileDownloader.py
+++ b/youtube_dl/FileDownloader.py
@@ -14,7 +14,7 @@ import urllib2
 if os.name == 'nt':
 	import ctypes
 	
-from Utils import *
+from utils import *
 
 
 class FileDownloader(object):
diff --git a/youtube_dl/InfoExtractors.py b/youtube_dl/InfoExtractors.py
index b840bf6601..4314f14022 100644
--- a/youtube_dl/InfoExtractors.py
+++ b/youtube_dl/InfoExtractors.py
@@ -34,7 +34,7 @@ try:
 except ImportError: # Python<2.5: Not officially supported, but let it slip
 	warnings.warn('xml.etree.ElementTree support is missing. Consider upgrading to Python >= 2.5 if you get related errors.')
 
-from Utils import *
+from utils import *
 
 
 class InfoExtractor(object):
diff --git a/youtube_dl/PostProcessing.py b/youtube_dl/PostProcessor.py
similarity index 99%
rename from youtube_dl/PostProcessing.py
rename to youtube_dl/PostProcessor.py
index 90ac07af4d..52e686a7f5 100644
--- a/youtube_dl/PostProcessing.py
+++ b/youtube_dl/PostProcessor.py
@@ -6,7 +6,7 @@ import subprocess
 import sys
 import time
 
-from Utils import *
+from utils import *
 
 
 class PostProcessor(object):
diff --git a/youtube_dl/__init__.py b/youtube_dl/__init__.py
index b4141b69eb..5e500d5e02 100644
--- a/youtube_dl/__init__.py
+++ b/youtube_dl/__init__.py
@@ -38,10 +38,10 @@ import sys
 import urllib2
 import warnings
 
-from Utils import *
+from utils import *
 from FileDownloader import *
 from InfoExtractors import *
-from PostProcessing import *
+from PostProcessor import *
 
 def updateSelf(downloader, filename):
 	''' Update the program file with the latest version from the repository '''
diff --git a/youtube_dl/Utils.py b/youtube_dl/utils.py
similarity index 100%
rename from youtube_dl/Utils.py
rename to youtube_dl/utils.py