diff --git a/lib/py/src/Thrift.py b/lib/py/src/Thrift.py
index c4dabdc..00941d8 100644
--- a/lib/py/src/Thrift.py
+++ b/lib/py/src/Thrift.py
@@ -69,9 +69,9 @@
 
 
 class TProcessor(object):
-    """Base class for procsessor, which works on two streams."""
+    """Base class for processor, which works on two streams."""
 
-    def process(iprot, oprot):
+    def process(self, iprot, oprot):
         pass