diff --git a/jedi/evaluate/__init__.py b/jedi/evaluate/__init__.py
index 63772882..1d1a8bed 100644
--- a/jedi/evaluate/__init__.py
+++ b/jedi/evaluate/__init__.py
@@ -339,7 +339,7 @@ class Evaluator(object):
                 for typ in self.eval_call(call):
                     for param in typ.params:
                         if unicode(param.get_name()) == unicode(named_param_name):
-                            param_names.append(param.get_name())
+                            param_names.append(param.get_name().names[-1])
                 return param_names
             return [call_path[0]]
 
diff --git a/jedi/evaluate/finder.py b/jedi/evaluate/finder.py
index 3e2ea40c..82117584 100644
--- a/jedi/evaluate/finder.py
+++ b/jedi/evaluate/finder.py
@@ -102,14 +102,15 @@ class NameFinder(object):
                             or isinstance(scope, compiled.CompiledObject) \
                             or isinstance(stmt, pr.ExprStmt) and stmt.is_global():
                         # Always reachable.
-                        result.append(name)
+                        result.append(name.names[-1])
+                        assert name == name.names[-1].parent
                     else:
                         check = flow_analysis.break_check(self._evaluator,
                                                           name_list_scope,
                                                           er.wrap(self._evaluator, scope),
                                                           self.scope)
                         if check is not flow_analysis.UNREACHABLE:
-                            result.append(name)
+                            result.append(name.names[-1])
                         if check is flow_analysis.REACHABLE:
                             break
 
diff --git a/jedi/evaluate/param.py b/jedi/evaluate/param.py
index 64711a19..f5ef8f50 100644
--- a/jedi/evaluate/param.py
+++ b/jedi/evaluate/param.py
@@ -359,6 +359,8 @@ def _gen_param_name_copy(func, var_args, param, keys=(), values=(), array_type=N
     new_param.set_expression_list([arr])
 
     name = copy.copy(param.get_name())
+    name.names = [copy.copy(name.names[0])]
+    name.names[0].parent = name
     name.parent = new_param
     return name
 
diff --git a/jedi/evaluate/representation.py b/jedi/evaluate/representation.py
index 556e072d..c31827aa 100644
--- a/jedi/evaluate/representation.py
+++ b/jedi/evaluate/representation.py
@@ -291,6 +291,11 @@ class InstanceElement(use_metaclass(CachedMetaClass, pr.Base)):
         return [get_instance_el(self._evaluator, self.instance, command, self.is_class_var)
                 for command in self.var.expression_list()]
 
+    @property
+    @underscore_memoization
+    def names(self):
+        return [pr.NamePart(unicode(n), self, n.start_pos) for n in self.var.names]
+
     @property
     @underscore_memoization
     def name(self):