diff --git a/fhem/FHEM/01_FHEMWEB.pm b/fhem/FHEM/01_FHEMWEB.pm
index 7ca4f30b3..a8583f55a 100755
--- a/fhem/FHEM/01_FHEMWEB.pm
+++ b/fhem/FHEM/01_FHEMWEB.pm
@@ -1529,7 +1529,7 @@ FW_style($$)
     $attr{global}{configfile} =~ m,([^/]*)$,;
     my $cfgFileName = $1;
     FW_displayFileList("config file", $cfgFileName)
-                                if($attr{global}{configfile} ne 'configDB');
+                                if(!configDBUsed());
     FW_displayFileList("Own modules and helper files",
         FW_fileList("$MW_dir/^(.*sh|[0-9][0-9].*Util.*pm|.*cfg|.*holiday".
                                   "|.*layout)\$"));
diff --git a/fhem/FHEM/95_holiday.pm b/fhem/FHEM/95_holiday.pm
index 15cda6195..9be806466 100755
--- a/fhem/FHEM/95_holiday.pm
+++ b/fhem/FHEM/95_holiday.pm
@@ -62,7 +62,7 @@ holiday_refresh($$)
 
   my $fname = $attr{global}{modpath} . "/FHEM/" . $hash->{NAME} . ".holiday";
   my @holidayfile;
-  if($attr{global}{configfile} eq 'configDB') {
+  if(configDBUsed()) {
     my $hfile = _cfgDB_Readfile($fname);
     return "Holiday file not found in database." unless defined $hfile;
     @holidayfile = split("\n", $hfile);
diff --git a/fhem/FHEM/98_backup.pm b/fhem/FHEM/98_backup.pm
index 52312edf1..dfea43611 100644
--- a/fhem/FHEM/98_backup.pm
+++ b/fhem/FHEM/98_backup.pm
@@ -54,7 +54,7 @@ CommandBackup($$)
   my $msg;
   my $ret;
 
-  return "Backup is not supported for configDB" if($configfile eq 'configDB');
+  return "Backup is not supported for configDB" if(configDBUsed());
 
   # set backupdir
   my $backupdir;
diff --git a/fhem/FHEM/98_fheminfo.pm b/fhem/FHEM/98_fheminfo.pm
index 8ad09d6dc..f99e0fe2c 100644
--- a/fhem/FHEM/98_fheminfo.pm
+++ b/fhem/FHEM/98_fheminfo.pm
@@ -309,7 +309,7 @@ sub checkConfigFile($) {
   my $name = "fheminfo";
   my $configFile = AttrVal("global","configfile","");
 
-  if($configFile && $configFile ne 'configDB') {
+  if($configFile && !configDBUsed()) {
     my $fh;
     if(!open($fh,"<".$configFile)) {
       return "Can't open $configFile: $!";
diff --git a/fhem/FHEM/98_update.pm b/fhem/FHEM/98_update.pm
index fadb59b3b..b6445ee24 100644
--- a/fhem/FHEM/98_update.pm
+++ b/fhem/FHEM/98_update.pm
@@ -433,8 +433,7 @@ update_DoUpdate(@)
 
   # do a backup first
   my $configfile = AttrVal("global", "configfile", "");
-  my $doBackup = AttrVal("global", "backup_before_update",
-                        ($configfile ne 'configDB'));
+  my $doBackup = AttrVal("global", "backup_before_update", !configDBUsed());
 
   if ($doBackup) {
     my $cmdret = AnalyzeCommand(undef, "backup");
diff --git a/fhem/fhem.pl b/fhem/fhem.pl
index a1cc3b544..d4a046ad7 100755
--- a/fhem/fhem.pl
+++ b/fhem/fhem.pl
@@ -94,6 +94,7 @@ sub addToWritebuffer($$);
 sub attrSplit($);
 sub computeClientArray($$);
 sub concatc($$$);
+sub configDBUsed();
 sub createInterfaceDefinitions();
 sub createNtfyHash();
 sub devspec2array($);
@@ -402,7 +403,7 @@ $winService ||= {};
 # Server initialization
 doGlobalDef($ARGV[0]);
 
-if($attr{global}{configfile} eq 'configDB') {
+if(configDBUsed()) {
   eval "use configDB";
   Log 1, $@ if($@);
   cfgDB_Init();
@@ -435,7 +436,7 @@ while(time() < 2*3600) {
 
 my $cfgErrMsg = "Error messages while initializing FHEM:";
 my $cfgRet="";
-if($attr{global}{configfile} eq 'configDB') {
+if(configDBUsed()) {
   my $ret = cfgDB_ReadAll(undef);
   $cfgRet .= "configDB: $ret" if($ret);
 
@@ -1145,7 +1146,7 @@ CommandRereadCfg($$)
   my $name = ($cl ? $cl->{NAME} : "__anonymous__");
   my $cfgfile = ($param ? $param : $attr{global}{configfile});
   return "Cannot open $cfgfile: $!"
-        if(! -f $cfgfile && $attr{global}{configfile} ne 'configDB');
+        if(! -f $cfgfile && !configDBUsed());
 
   $attr{global}{configfile} = $cfgfile;
   WriteStatefile();
@@ -1170,7 +1171,7 @@ CommandRereadCfg($$)
   doGlobalDef($cfgfile);
   my $ret;
   
-  if($attr{global}{configfile} eq 'configDB') {
+  if(configDBUsed()) {
     $ret = cfgDB_ReadAll($cl);
 
   } else {
@@ -1210,7 +1211,7 @@ CommandQuit($$)
 sub
 WriteStatefile()
 {
-  if($attr{global}{configfile} eq 'configDB') {
+  if(configDBUsed()) {
     cfgDB_SaveState();
     return "";
   }
@@ -1279,7 +1280,7 @@ CommandSave($$)
 
   WriteStatefile();
 
-  if($attr{global}{configfile} eq 'configDB') {
+  if(configDBUsed()) {
     $ret = cfgDB_SaveCfg();
     return ($ret ? $ret : "Saved configuration to the DB");
   }
@@ -2400,7 +2401,7 @@ CommandVersion($$)
   my ($cl, $param) = @_;
 
   my @ret = ("# $cvsid");
-  push @ret, cfgDB_svnId if $attr{global}{configfile} eq 'configDB';
+  push @ret, cfgDB_svnId if(configDBUsed());
   foreach my $m (sort keys %modules) {
     next if(!$modules{$m}{LOADED} || $modules{$m}{ORDER} < 0);
     Log 4, "Looking for SVN Id in module $m";
@@ -3855,5 +3856,10 @@ notifyRegexpChanged($$)
   }
 }
 
+sub
+configDBUsed()
+{ 
+  return ($attr{global}{configfile} eq 'configDB');
+}
 
 1;