diff --git a/lib/gensens.pm b/lib/gensens.pm
index b6e69f7..25f7a4e 100644
--- a/lib/gensens.pm
+++ b/lib/gensens.pm
@@ -424,13 +424,15 @@ sub gensens_cgi {
 	foreach my $sg (sort keys %{$gensens->{list}}) {
 		my @ls = split(',', $gensens->{list}->{$sg});
 
-		# determine if we are dealing with a 'temp', 'cpu' or 'bat' graph
+		# determine if we are dealing with a 'temp', 'cpu', 'bat' or 'pwr' graph
 		if(index($ls[0], "temp") == 0) {
 			$vlabel = $temp_scale;
 		} elsif(index($ls[0], "cpu") == 0) {
 			$vlabel = "Hz";
 		} elsif(index($ls[0], "bat") == 0) {
 			$vlabel = "Charge";
+		} elsif(index($ls[0], "pwr") == 0) {
+			$vlabel = "Watt";
 		} else {
 			# not supported yet
 		}