diff --git a/fhem/www/gplot/EnO_CO2.gplot b/fhem/www/gplot/EnO_CO2.gplot
index 3bbcb05eb..70ad4884d 100644
--- a/fhem/www/gplot/EnO_CO2.gplot
+++ b/fhem/www/gplot/EnO_CO2.gplot
@@ -1,6 +1,6 @@
 ##############################################
 # $Id$
-# Display the measured temperature
+# Display the measured CO2 concentration
 #
 # FileLog definition: 
 # define FileLog_device FileLog ./log/device-%Y.log device