diff --git a/plugins/python/scripter/documentcontroller.py b/plugins/python/scripter/documentcontroller.py
index 85f7667de6..416838f9ac 100644
--- a/plugins/python/scripter/documentcontroller.py
+++ b/plugins/python/scripter/documentcontroller.py
@@ -1,57 +1,78 @@
 """
 Copyright (c) 2017 Eliakin Costa <eliakim170@gmail.com>
 
 This program is free software; you can redistribute it and/or modify
 it under the terms of the GNU General Public License as published by
 the Free Software Foundation; either version 2 of the License, or
 (at your option) any later version.
 
 This program is distributed in the hope that it will be useful,
 but WITHOUT ANY WARRANTY; without even the implied warranty of
 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 GNU General Public License for more details.
 
 You should have received a copy of the GNU General Public License
 along with this program; if not, write to the Free Software
 Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
 """
 from .document_scripter import document
+from PyQt5.QtCore import QFileSystemWatcher, QFileInfo
 
 
 class DocumentController(object):
 
     def __init__(self):
         self._activeDocument = None
+        self._fileWatcher = QFileSystemWatcher()
+
+        self._fileWatcher.fileChanged.connect(self._changedFile)
 
     @property
     def activeDocument(self):
         return self._activeDocument
 
     def openDocument(self, filePath):
         if filePath:
+            if self._activeDocument:
+                old_path = self._activeDocument.path
+                self._fileWatcher.removePath(old_path)
+
             newDocument = document.Document(filePath)
             newDocument.open()
             self._activeDocument = newDocument
+
+            self._fileWatcher.addPath(filePath)
+
             return newDocument
 
     def saveDocument(self, data, filePath, save_as=False):
         """
         data - data to be written
         filePath - file path to write data to
         save_as = boolean, is this call made from save_as functionality. If so, do not compare data
         against existing document before save.
         """
 
         if save_as or not self._activeDocument:
             self._activeDocument = document.Document(filePath)
 
         text = str(data)
         if save_as or not self._activeDocument.compare(text):
             # compare is not evaluated if save_as is True
             self._activeDocument.data = text
             self._activeDocument.save()
 
         return self._activeDocument
 
     def clearActiveDocument(self):
         self._activeDocument = None
+
+    def _changedFile(self, path):
+        fileSystemDocument = document.Document(path)
+        fileSystemDocument.open()
+
+        if not self._activeDocument.compare(fileSystemDocument.data):
+            print('file {0} changed'.format(path))
+
+        if QFileInfo(path).exists():
+            self._fileWatcher.addPath(path)