diff --git a/fhem/FHEM/11_FHT.pm b/fhem/FHEM/11_FHT.pm
index 4f34f4405..727c78a99 100755
--- a/fhem/FHEM/11_FHT.pm
+++ b/fhem/FHEM/11_FHT.pm
@@ -445,7 +445,7 @@ FHT_Parse($$)
     elsif($sval =~ m/.1/)    { $val = "99%" } # FHT set to 30.5, FHT80B=="ON"
     elsif($sval =~ m/.2/)    { $val = "0%" }  # FHT set to  5.5
     elsif($sval =~ m/.6/)    { $val = "$fv" }
-    elsif($sval =~ m/.8/)    { $val = "offset: $fv" }
+    elsif($sval =~ m/.8/)    { $val = "offset: " . ($val>128?(128-$val):$val) }
     elsif($sval =~ m/[23]a/) { $val = "lime-protection" }
     elsif($sval =~ m/[ab]a/) { $val = $fv } # lime protection bug
     elsif($sval =~ m/.c/)    { $val = sprintf("synctime: %d", int($val/2)-1); }