diff --git a/doc/revpipyload.html b/doc/revpipyload.html
index eff826f..16b3a4e 100644
--- a/doc/revpipyload.html
+++ b/doc/revpipyload.html
@@ -202,7 +202,7 @@ Methods</h3>
 <td>Instantiiert PipeLogwriter-Klasse.</td>
 </tr><tr>
 <td><a style="color:#0000FF" href="#PipeLogwriter.__del__">__del__</a></td>
-<td></td>
+<td>Close file handler.</td>
 </tr><tr>
 <td><a style="color:#0000FF" href="#PipeLogwriter._configurefh">_configurefh</a></td>
 <td>Konfiguriert den FileHandler fuer Ausgaben der PLCAPP.</td>
@@ -240,7 +240,9 @@ Dateiname fuer Logdatei
 <h3 style="background-color:#FFFFFF;color:#FF0000">
 PipeLogwriter.__del__</h3>
 <b>__del__</b>(<i></i>)
-<a NAME="PipeLogwriter._configurefh" ID="PipeLogwriter._configurefh"></a>
+<p>
+Close file handler.
+</p><a NAME="PipeLogwriter._configurefh" ID="PipeLogwriter._configurefh"></a>
 <h3 style="background-color:#FFFFFF;color:#FF0000">
 PipeLogwriter._configurefh</h3>
 <b>_configurefh</b>(<i></i>)
diff --git a/revpipyload/proginit.py b/revpipyload/proginit.py
index adce346..6340bd6 100644
--- a/revpipyload/proginit.py
+++ b/revpipyload/proginit.py
@@ -63,7 +63,7 @@ def configure():
         pargs.conffile = os.path.join(startdir, pargs.conffile)
     if pargs.logfile is not None and os.path.dirname(pargs.logfile) == "":
         pargs.logfile = os.path.join(startdir, pargs.logfile)
-    
+
     # Prüfen ob als Daemon ausgeführt werden soll
     global forked
     pidfile = "/var/run/revpipyload.pid"
diff --git a/revpipyload/revpipyload.py b/revpipyload/revpipyload.py
index 6e81291..78034c9 100755
--- a/revpipyload/revpipyload.py
+++ b/revpipyload/revpipyload.py
@@ -192,6 +192,7 @@ class PipeLogwriter(Thread):
         ))
 
     def __del__(self):
+        """Close file handler."""
         if self._fh is not None:
             self._fh.close()
 
@@ -305,7 +306,7 @@ class RevPiPlc(Thread):
         elif proginit.pargs.logfile is not None:
             logfile = proginit.pargs.logfile
 
-        if not logfile is None:
+        if logfile is not None:
             logfile = PipeLogwriter(logfile)
 
         proginit.logger.debug("leave RevPiPlc._configureplw()")