diff --git a/huffman_py/Tree.py b/huffman_py/Tree.py
index e69783a..368fe87 100644
--- a/huffman_py/Tree.py
+++ b/huffman_py/Tree.py
@@ -50,12 +50,12 @@ class Tree(object):
             L = list()
             L.append(self.root)
             while len(L) > 0:
-                traitement = L.pop(0)
-                self.nodes.append(traitement)
-                if traitement.left:
-                    L.append(traitement.left)
-                if traitement.right:
-                    L.append(traitement.right)
+                treatment = L.pop(0)
+                self.nodes.append(treatment)
+                if treatment.left:
+                    L.append(treatment.left)
+                if treatment.right:
+                    L.append(treatment.right)
 
         def set_id(self):
             # Give unique identifiers to every node in a tree
@@ -94,8 +94,8 @@ class Tree(object):
 
             return self
 
-        def seek(self, node):
+        def seek(self, node_to_seek):
             for node in self.nodes:
-                if node == node:
+                if node == node_to_seek:
                     return node
             return None