diff --git a/fhem/FHEM/92_FileLog.pm b/fhem/FHEM/92_FileLog.pm
index 4e14d4995..a5517a355 100755
--- a/fhem/FHEM/92_FileLog.pm
+++ b/fhem/FHEM/92_FileLog.pm
@@ -465,7 +465,7 @@ FileLog_logWrapper($)
     }
     FW_pO "<table><tr><td>";
     FW_pO "<td>";
-    my $logtype = $defs{$d}{TYPE};
+    my $logtype = $defs{$d}{NAME};
     my $wl = "&amp;pos=" . join(";", map {"$_=$FW_pos{$_}"} keys %FW_pos);
     my $arg = "$FW_ME/SVG_showLog&dev=$logtype&logdev=$d".
                 "&gplotfile=$type&logfile=$file$wl";
diff --git a/fhem/FHEM/98_SVG.pm b/fhem/FHEM/98_SVG.pm
index e465a1aa6..6c74529d3 100755
--- a/fhem/FHEM/98_SVG.pm
+++ b/fhem/FHEM/98_SVG.pm
@@ -501,7 +501,8 @@ SVG_readgplotfile($$)
 
   my $ldType = $defs{$defs{$wl}{LOGDEVICE}}{TYPE}
      if($defs{$wl} && $defs{$wl}{LOGDEVICE} && $defs{$defs{$wl}{LOGDEVICE}});
-  $ldType = $wl if(!$ldType);
+  $ldType = $defs{$wl}{TYPE}
+     if(!$ldType && $defs{$wl});
 
   my ($err, @svgplotfile) = FileRead($gplot_pgm);
   return ("$err", undef) if($err);