diff --git a/sphinx/domains/c.py b/sphinx/domains/c.py
index 90351ee71..1c34207f8 100644
--- a/sphinx/domains/c.py
+++ b/sphinx/domains/c.py
@@ -66,7 +66,7 @@ class CObject(ObjectDescription):
         'struct', '_Bool',
     ))
 
-    def _parse_type_old(self, node, ctype):
+    def _parse_type(self, node, ctype):
         # add cross-ref nodes for all words
         for part in [_f for _f in wsplit_re.split(ctype) if _f]:
             tnode = nodes.Text(part, part)
@@ -91,7 +91,7 @@ class CObject(ObjectDescription):
         rettype, name, arglist, const = m.groups()
 
         signode += addnodes.desc_type('', '')
-        self._parse_type_old(signode[-1], rettype)
+        self._parse_type(signode[-1], rettype)
         try:
             classname, funcname = name.split('::', 1)
             classname += '::'
@@ -130,9 +130,9 @@ class CObject(ObjectDescription):
                 ctype, argname = arg.rsplit(' ', 1)
             except ValueError:
                 # no argument name given, only the type
-                self._parse_type_old(param, arg)
+                self._parse_type(param, arg)
             else:
-                self._parse_type_old(param, ctype)
+                self._parse_type(param, ctype)
                 # separate by non-breaking space in the output
                 param += nodes.emphasis(' '+argname, u'\xa0'+argname)
             paramlist += param
diff --git a/sphinx/ext/napoleon/docstring.py b/sphinx/ext/napoleon/docstring.py
index 36e9896b4..19f5f395a 100644
--- a/sphinx/ext/napoleon/docstring.py
+++ b/sphinx/ext/napoleon/docstring.py
@@ -197,12 +197,12 @@ class GoogleDocstring(UnicodeMixin):
             line = self._line_iter.peek()
         return lines
 
-    def _consume_field(self, parse_type_old=True, prefer_type=False):
+    def _consume_field(self, parse_type=True, prefer_type=False):
         line = next(self._line_iter)
 
         match = None
         _name, _type, _desc = line.strip(), '', ''
-        if parse_type_old:
+        if parse_type:
             match = _google_typed_arg_regex.match(line)
             if match:
                 _name = match.group(1)
@@ -222,11 +222,11 @@ class GoogleDocstring(UnicodeMixin):
         _desc = self.__class__(_desc, self._config).lines()
         return _name, _type, _desc
 
-    def _consume_fields(self, parse_type_old=True, prefer_type=False):
+    def _consume_fields(self, parse_type=True, prefer_type=False):
         self._consume_empty()
         fields = []
         while not self._is_section_break():
-            _name, _type, _desc = self._consume_field(parse_type_old, prefer_type)
+            _name, _type, _desc = self._consume_field(parse_type, prefer_type)
             if _name or _type or _desc:
                 fields.append((_name, _type, _desc,))
         return fields
@@ -462,7 +462,7 @@ class GoogleDocstring(UnicodeMixin):
 
     def _parse_methods_section(self, section):
         lines = []
-        for _name, _, _desc in self._consume_fields(parse_type_old=False):
+        for _name, _, _desc in self._consume_fields(parse_type=False):
             lines.append('.. method:: %s' % _name)
             if _desc:
                 lines.extend([''] + self._indent(_desc, 3))
@@ -698,9 +698,9 @@ class NumpyDocstring(GoogleDocstring):
         super(NumpyDocstring, self).__init__(docstring, config, app, what,
                                              name, obj, options)
 
-    def _consume_field(self, parse_type_old=True, prefer_type=False):
+    def _consume_field(self, parse_type=True, prefer_type=False):
         line = next(self._line_iter)
-        if parse_type_old:
+        if parse_type:
             _name, _, _type = line.partition(':')
         else:
             _name, _type = line, ''