diff --git a/fhem/FHEM/98_statistics.pm b/fhem/FHEM/98_statistics.pm
index 236779445..966ab0a1e 100644
--- a/fhem/FHEM/98_statistics.pm
+++ b/fhem/FHEM/98_statistics.pm
@@ -890,7 +890,7 @@ sub statistics_doStatisticSpecialPeriod2 ($$$$$$)
$result += $_;
$counterHidden++;
if ( $counterHidden == $periods[$counterPeriods] ) {
- my $rName = $statReadingName.$periods[$counterPeriods];
+ my $rName = $statReadingName . $periods[$counterPeriods];
my $rValue = sprintf "%.".$decPlaces."f", $result;
statistics_Log $hash, 4, "Set '$rName = $rValue'";
readingsBulkUpdate($dev, $rName, $rValue, 1);
@@ -1446,7 +1446,7 @@ sub statistics_UpdateDevReading($$$$)
specialDeltaPeriod <Gerät:Gerätewert:Zeitraum:Anzahl1:Anzahl2:...>