diff --git a/labs02/task09.py b/labs02/task09.py
index e2c67fa..a6539b4 100644
--- a/labs02/task09.py
+++ b/labs02/task09.py
@@ -16,15 +16,15 @@ def leet_speak(text):
     lista_temp = ""
     for i in text_tmp:
         if i =='e':
-            lista_temp.append('3')
+            lista_temp += '3'
         elif i =='l':
-            lista_temp.append('1')
+            lista_temp += '1'
         elif i =='o':
-            lista_temp.append('0')
+            lista_temp += '0'
         elif i =='t':
-            lista_temp.append('7')
+            lista_temp +='7'
         else:
-            lista_temp.append(i)
+            lista_temp +=i
     return lista_temp
 
 def tests(f):