diff --git a/paramiko/buffered_pipe.py b/paramiko/buffered_pipe.py
index 3b513e3..ae3d9d6 100644
--- a/paramiko/buffered_pipe.py
+++ b/paramiko/buffered_pipe.py
@@ -76,7 +76,7 @@ class BufferedPipe (object):
             if self._event is not None:
                 self._event.set()
             self._buffer.fromstring(data)
-    	    self._cv.notifyAll()
+            self._cv.notifyAll()
         finally:
             self._lock.release()
 
diff --git a/paramiko/common.py b/paramiko/common.py
index 9350f34..2dffad1 100644
--- a/paramiko/common.py
+++ b/paramiko/common.py
@@ -21,7 +21,7 @@ Common constants and global variables.
 """
 
 MSG_DISCONNECT, MSG_IGNORE, MSG_UNIMPLEMENTED, MSG_DEBUG, MSG_SERVICE_REQUEST, \
-	MSG_SERVICE_ACCEPT = range(1, 7)
+    MSG_SERVICE_ACCEPT = range(1, 7)
 MSG_KEXINIT, MSG_NEWKEYS = range(20, 22)
 MSG_USERAUTH_REQUEST, MSG_USERAUTH_FAILURE, MSG_USERAUTH_SUCCESS, \
         MSG_USERAUTH_BANNER = range(50, 54)
@@ -29,9 +29,9 @@ MSG_USERAUTH_PK_OK = 60
 MSG_USERAUTH_INFO_REQUEST, MSG_USERAUTH_INFO_RESPONSE = range(60, 62)
 MSG_GLOBAL_REQUEST, MSG_REQUEST_SUCCESS, MSG_REQUEST_FAILURE = range(80, 83)
 MSG_CHANNEL_OPEN, MSG_CHANNEL_OPEN_SUCCESS, MSG_CHANNEL_OPEN_FAILURE, \
-	MSG_CHANNEL_WINDOW_ADJUST, MSG_CHANNEL_DATA, MSG_CHANNEL_EXTENDED_DATA, \
-	MSG_CHANNEL_EOF, MSG_CHANNEL_CLOSE, MSG_CHANNEL_REQUEST, \
-	MSG_CHANNEL_SUCCESS, MSG_CHANNEL_FAILURE = range(90, 101)
+    MSG_CHANNEL_WINDOW_ADJUST, MSG_CHANNEL_DATA, MSG_CHANNEL_EXTENDED_DATA, \
+    MSG_CHANNEL_EOF, MSG_CHANNEL_CLOSE, MSG_CHANNEL_REQUEST, \
+    MSG_CHANNEL_SUCCESS, MSG_CHANNEL_FAILURE = range(90, 101)
 
 
 # for debugging: