diff --git a/papi/utils.py b/papi/utils.py
index cbc65a6..a8b866c 100644
--- a/papi/utils.py
+++ b/papi/utils.py
@@ -57,7 +57,7 @@ def compare(channels, previous, current):
 def clean_state(state):
     # Ote l'identifiant en début de chaine
 
-    return state[0].split("#", 1)[1], state[1], '->', state[2]
+    return state[0].split("#", 1)[1], state[1], "->", state[2]
 
 
 def list_channels(p, c):