diff --git a/mitmproxy/flowfilter.py b/mitmproxy/flowfilter.py
index a63989579..6ca74b686 100644
--- a/mitmproxy/flowfilter.py
+++ b/mitmproxy/flowfilter.py
@@ -36,6 +36,7 @@ from __future__ import absolute_import, print_function, division
 import re
 import sys
 import functools
+import six
 
 from mitmproxy.models.http import HTTPFlow
 from mitmproxy.models.tcp import TCPFlow
@@ -501,16 +502,15 @@ def parse(s):
         return None
 
 
-def match(self, flow, flt):
+def match(flow, flt):
     """
-        Match a flow against a compiled filter expression.
+        Matches a flow against a compiled filter expression.
         Returns True if matched, False if not.
 
         If flt is a string, it will be compiled as a filter expression.
         If the expression is invalid, ValueError is raised.
     """
     if isinstance(flt, six.string_types):
-
         flt = parse(flt)
         if not flt:
             raise ValueError("Invalid filter expression.")
diff --git a/mitmproxy/models/flow.py b/mitmproxy/models/flow.py
index f8c0b2102..6fce6e209 100644
--- a/mitmproxy/models/flow.py
+++ b/mitmproxy/models/flow.py
@@ -189,20 +189,9 @@ class Flow(stateobject.StateObject):
         self.reply.commit()
         master.handle_accept_intercept(self)
 
-    def match(self, flt):
-        """
-            Matches a flow against a compiled filter expression.
-            Returns True if matched, False if not.
+    def match(self, f):
+        import warnings
+        warnings.warn(".match() is deprecated, please use flowfilter.match(some_flow, some_filter) instead.", DeprecationWarning)
 
-            If flt is a string, it will be compiled as a filter expression.
-            If the expression is invalid, ValueError is raised.
-        """
-        if isinstance(flt, six.string_types):
-            from ..flowfilter import parse
-
-            flt = parse(flt)
-            if not flt:
-                raise ValueError("Invalid filter expression.")
-        if flt:
-            return flt(self)
-        return True
+        from mitmproxy import flowfilter
+        return flowfilter.match(self, f)