diff --git a/glances/outputs/glances_colorconsole.py b/glances/outputs/glances_colorconsole.py
index 3cd674e196450eb89bb42e9f09412273176f5e28..9f581dc3bc64b7be9114c9f1c9648e1f3f733a0e 100644
--- a/glances/outputs/glances_colorconsole.py
+++ b/glances/outputs/glances_colorconsole.py
@@ -129,6 +129,7 @@ class WCurseLight(object):
     COLOR_BLACK = colorconsole.terminal.colors["BLACK"]
     A_UNDERLINE = 0
     A_BOLD = 0
+    A_PROTECT = 0
     COLOR_PAIRS = 9
     colors = {}