diff --git a/fhem/FHEM/98_HMinfo.pm b/fhem/FHEM/98_HMinfo.pm
index 3775dd8ef..4658d4920 100644
--- a/fhem/FHEM/98_HMinfo.pm
+++ b/fhem/FHEM/98_HMinfo.pm
@@ -526,7 +526,7 @@ sub HMinfo_paramCheck(@) { ####################################################
   foreach my $eName (@entities){
     if ($defs{$eName}{helper}{role}{dev}){
       my $ehash = $defs{$eName};
-      my $pairId =  ReadingsVal($eName,"R-pairCentral","undefined");
+      my $pairId =  ReadingsVal($eName,"R-pairCentral", ReadingsVal($eName,".R-pairCentral","undefined"));
       my $IoDev =  $ehash->{IODev} if ($ehash->{IODev});
       my $ioHmId = AttrVal($IoDev->{NAME},"hmId","-");
       my ($ioCCU,$prefIO) = split":",AttrVal($eName,"IOgrp","");