diff --git a/wo/core/template.py b/wo/core/template.py
index e54892e..2227b77 100644
--- a/wo/core/template.py
+++ b/wo/core/template.py
@@ -9,16 +9,19 @@ Render Templates
 class WOTemplate():
     def tmpl_render(self, fileconf, template, data, overwrite=True):
         if (not overwrite):
-            data = dict(data)
-            Log.debug(self, 'Writting the configuration to '
-                      'file {0}'.format(fileconf))
-            wo_template = open('{0}'.format(fileconf),
-                               encoding='utf-8', mode='w')
-            self.app.render((data), '{0}'.format(template),
-                            out=wo_template)
-            wo_template.close()
-        else:
             if not os.path.isfile('{0}'.format(fileconf)):
+                data = dict(data)
+                Log.debug(self, 'Writting the configuration to '
+                          'file {0}'.format(fileconf))
+                wo_template = open('{0}'.format(fileconf),
+                                   encoding='utf-8', mode='w')
+                self.app.render((data), '{0}'.format(template),
+                                out=wo_template)
+                wo_template.close()
+        else:
+            if (not os.path.isfile('{0}.custom'
+                                   .format(fileconf))):
+                data = dict(data)
                 Log.debug(self, 'Writting the configuration to '
                           'file {0}'.format(fileconf))
                 wo_template = open('{0}'.format(fileconf),