diff --git a/removeads.py b/removeads.py
index 9ae5cba..b8320fb 100755
--- a/removeads.py
+++ b/removeads.py
@@ -206,8 +206,8 @@ def extractSRT(mkvextract, fileName, subtitles, langs):
             ocrlang ='osd'
 
         if len(subtitles[lang]) == 1:
-                params.append('%d:%s' % (subtitles[lang][0], lang))
-                res.append(('%s.idx' % lang, '%s.sub' % lang, lang, ocrlang))
+            params.append('%d:%s' % (subtitles[lang][0], lang))
+            res.append(('%s.idx' % lang, '%s.sub' % lang, lang, ocrlang))
         else:
             count = 1
             for track in subtitles[lang]:
@@ -514,7 +514,7 @@ def moreRBSPData(buf, bitPosition):
                 break
 
     if not found:
-            raise(Exception('Impossible to find trailing stop bit !'))
+        raise(Exception('Impossible to find trailing stop bit !'))
 
     # No more data
     if bitPosition == pos:
@@ -2119,8 +2119,8 @@ def getFramesInStream(ffprobe, inputFile, begin, end, streamKind, subStreamId=0)
 
             return res
         else:
-           logger.error('Impossible to retrieve frames inside file around [%s,%s]' % (begin, end))
-           return None
+            logger.error('Impossible to retrieve frames inside file around [%s,%s]' % (begin, end))
+            return None
 
 # TODO:
 def getNearestIDRFrame(ffprobe, inputFile, timestamp, before=True, delta=timedelta(seconds=2)):
@@ -2157,8 +2157,8 @@ def getNearestIDRFrame(ffprobe, inputFile, timestamp, before=True, delta=timedel
                 if tbegin <= ts and ts <= tend:
                     idrs.append(frame)
         else:
-           logger.error('Impossible to retrieve IDR frames inside file around [%s,%s]', tbegin, tend)
-           return None
+            logger.error('Impossible to retrieve IDR frames inside file around [%s,%s]', tbegin, tend)
+            return None
 
 def getNearestIFrame(ffprobe, inputFile, timestamp, before=True, deltaMax=timedelta(seconds=15)):
     logger = logging.getLogger(__name__)