diff --git a/evaluate.py b/evaluate.py
index 0f73dfac..70afc225 100644
--- a/evaluate.py
+++ b/evaluate.py
@@ -200,6 +200,14 @@ class Class(object):
         self.base = base
 
     def get_defined_names(self, as_instance=False):
+        def in_iterable(name, iterable):
+            for i in iterable:
+                # only the last name is important, because these names have a
+                # maximal length of 2, with the first one being `self`.
+                if i.names[-1] == name.names[-1]:
+                    return True
+            return False
+
         names = self.base.get_defined_names()
 
         # check super classes:
@@ -209,7 +217,7 @@ class Class(object):
                 if as_instance:
                     cls = Instance(cls)
                 for i in cls.get_defined_names():
-                    if not i.in_iterable(names):
+                    if not in_iterable(i, names):
                         names.append(i)
         return names
 
diff --git a/parsing.py b/parsing.py
index 26b0aad4..0dfb761e 100644
--- a/parsing.py
+++ b/parsing.py
@@ -884,13 +884,6 @@ class Name(Simple):
         """ Returns the names in a full string format """
         return ".".join(self.names)
 
-    def in_iterable(self, iterable):
-        for i in iterable:
-            if i.names == self.names:
-                return True
-        return False
-
-
     def __str__(self):
         return self.get_code()
 
diff --git a/test/completion/ordering.py b/test/completion/ordering.py
index 29c0db25..c4934e37 100644
--- a/test/completion/ordering.py
+++ b/test/completion/ordering.py
@@ -32,6 +32,15 @@ a.real
 #? ['upper']
 a.upper
 
+a = tuple
+if 1:
+    a = list
+
+#? ['append']
+a.append
+#? ['index']
+a.index
+
 # -----------------
 # tuples exchanges
 # -----------------