diff --git a/src/chat_control.py b/src/chat_control.py
index 4bb84cec6..0d91948bd 100644
--- a/src/chat_control.py
+++ b/src/chat_control.py
@@ -2253,8 +2253,12 @@ class ChatControl(ChatControlBase):
                         fixed = self.xml.get_object('outgoing_fixed')
                         fixed.set_no_show_all(False)
                         video_hbox.show_all()
-                        out_xid = self.xml.get_object(
-                            'outgoing_drawingarea').get_window().xid
+                        if os.name == 'nt':
+                            out_xid = self.xml.get_object(
+                                'outgoing_drawingarea').get_window().handle
+                        else:
+                            out_xid = self.xml.get_object(
+                                'outgoing_drawingarea').get_window().xid
                     else:
                         out_xid = None
                     video_hbox.show_all()
diff --git a/src/dialogs.py b/src/dialogs.py
index e02d651eb..06365f271 100644
--- a/src/dialogs.py
+++ b/src/dialogs.py
@@ -5391,13 +5391,21 @@ class VoIPCallReceivedDialog(object):
                     fixed = ctrl.xml.get_object('outgoing_fixed')
                     fixed.set_no_show_all(False)
                 video_hbox.show_all()
-                in_xid = ctrl.xml.get_object('incoming_drawingarea').\
-                    get_window().xid
+                if os.name == 'nt':
+                    in_xid = ctrl.xml.get_object('incoming_drawingarea').\
+                        get_window().handle
+                else:
+                    in_xid = ctrl.xml.get_object('incoming_drawingarea').\
+                        get_window().xid
                 content = session.get_content('video')
                 # move outgoing stream to chat window
                 if gajim.config.get('video_see_self'):
-                    out_xid = ctrl.xml.get_object('outgoing_drawingarea').\
-                        get_window().xid
+                    if os.name == 'nt':
+                        out_xid = ctrl.xml.get_object('outgoing_drawingarea').\
+                            get_window().handle
+                    else:
+                        out_xid = ctrl.xml.get_object('outgoing_drawingarea').\
+                            get_window().xid
                     b = content.src_bin
                     found = False
                     for e in b.elements():