diff --git a/examples/surf-display.default b/examples/surf-display.default
index 789e5a6..668cb0b 100644
--- a/examples/surf-display.default
+++ b/examples/surf-display.default
@@ -22,7 +22,7 @@ DEFAULT_WWW_URI="file:///usr/share/surf-display/empty-page.html"
 
 # Setting for internal inactivity timer to restart surf-display
 # if the user goes inactive/idle.
-#INACTIVITY__INTERVAL="300"
+#INACTIVITY_INTERVAL="300"
 
 # log to syslog instead of .xsession-errors
 #LOG_TO_SYSLOG="no"