diff --git a/pecan/core.py b/pecan/core.py
index 734b6e6..d892706 100644
--- a/pecan/core.py
+++ b/pecan/core.py
@@ -138,7 +138,7 @@ class Pecan(object):
         except NonCanonicalPath, e:
             if self.force_canonical and not _cfg(e.controller).get('accept_noncanonical', False):
                 if request.method == 'POST':
-                    raise RuntimeError, "You have POSTed to a URL '%s' which requires a slash.  Most browsers will not maintain POST data when redirected.  Please update you code to POST to '%s/' or set force_canonical to False" % (request.routing_path, request.routing_path)
+                    raise RuntimeError, "You have POSTed to a URL '%s' which requires a slash.  Most browsers will not maintain POST data when redirected.  Please update your code to POST to '%s/' or set force_canonical to False" % (request.routing_path, request.routing_path)
                 raise exc.HTTPFound(add_slash=True)
             return e.controller, e.remainder