diff --git a/pywb/webapp/test/test_view_filters.py b/pywb/webapp/test/test_view_filters.py
new file mode 100644
index 00000000..1df32d5f
--- /dev/null
+++ b/pywb/webapp/test/test_view_filters.py
@@ -0,0 +1,20 @@
+"""
+>>> format_ts('201412261010')
+'Fri, Dec 26 2014 10:10:59'
+
+>>> format_ts('201412261010', '%s')
+1419617459000
+
+>>> is_wb_handler(DebugEchoHandler())
+False
+
+
+"""
+
+from pywb.webapp.views import format_ts, is_wb_handler
+from pywb.webapp.handlers import DebugEchoHandler
+
+
+if __name__ == "__main__":
+    import doctest
+    doctest.testmod()
diff --git a/pywb/webapp/views.py b/pywb/webapp/views.py
index 4d9cdd6d..1f3a7e4b 100644
--- a/pywb/webapp/views.py
+++ b/pywb/webapp/views.py
@@ -23,11 +23,7 @@ class template_filter(object):
     Otherwise, the func name is the filter name
     """
     def __init__(self, param=None):
-        if hasattr(param, '__call__'):
-            self.name = None
-            self.__call__(param)
-        else:
-            self.name = param
+        self.name = param
 
     def __call__(self, func):
         name = self.name
@@ -40,7 +36,7 @@ class template_filter(object):
 
 #=================================================================
 # Filters
-@template_filter
+@template_filter()
 def format_ts(value, format_='%a, %b %d %Y %H:%M:%S'):
     value = timestamp_to_datetime(value)
     if format_ == '%s':
@@ -55,17 +51,11 @@ def get_urlsplit(url):
     return split
 
 
-@template_filter()
-def request_hostname(env):
-    return env.get('HTTP_HOST', 'localhost')
-
-
 @template_filter()
 def is_wb_handler(obj):
     if not hasattr(obj, 'handler'):
         return False
 
-    #return isinstance(obj.handler, WBHandler)
     return obj.handler.__class__.__name__ == "WBHandler"