diff --git a/gns3/console_cmd.py b/gns3/console_cmd.py
index 5e630f43..b1d0673a 100644
--- a/gns3/console_cmd.py
+++ b/gns3/console_cmd.py
@@ -22,7 +22,7 @@ Handles commands typed in the GNS3 console.
 import sys
 import cmd
 import struct
-import sip
+from .qt import sip
 import json
 
 from .node import Node
diff --git a/gns3/console_view.py b/gns3/console_view.py
index 10edb860..365f7bc1 100644
--- a/gns3/console_view.py
+++ b/gns3/console_view.py
@@ -16,7 +16,7 @@
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
 import sys
-import sip
+from .qt import sip
 import struct
 import inspect
 import datetime
diff --git a/gns3/crash_report.py b/gns3/crash_report.py
index bc37d061..a9379e16 100644
--- a/gns3/crash_report.py
+++ b/gns3/crash_report.py
@@ -132,7 +132,7 @@ class CrashReport:
     def _add_qt_information(self, context):
         try:
             from .qt import QtCore
-            import sip
+            from .qt import sip
         except ImportError:
             return context
         context["psutil:version"] = psutil.__version__
diff --git a/gns3/dialogs/appliance_wizard.py b/gns3/dialogs/appliance_wizard.py
index 06f2bf2a..8ab386b4 100644
--- a/gns3/dialogs/appliance_wizard.py
+++ b/gns3/dialogs/appliance_wizard.py
@@ -16,7 +16,7 @@
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
 import os
-import sip
+from ..qt import sip
 import shutil
 
 from ..qt import QtWidgets, QtCore, QtGui, qpartial, qslot
diff --git a/gns3/graphics_view.py b/gns3/graphics_view.py
index 517bfaaf..da058385 100644
--- a/gns3/graphics_view.py
+++ b/gns3/graphics_view.py
@@ -21,7 +21,7 @@ Graphical view on the scene where items are drawn.
 
 import logging
 import os
-import sip
+from .qt import sip
 import sys
 
 from .qt import QtCore, QtGui, QtNetwork, QtWidgets, qpartial, qslot
diff --git a/gns3/http_client.py b/gns3/http_client.py
index c0ceca69..6993bf58 100644
--- a/gns3/http_client.py
+++ b/gns3/http_client.py
@@ -15,7 +15,7 @@
 # You should have received a copy of the GNU General Public License
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
-import sip
+from .qt import sip
 import json
 import copy
 import http
diff --git a/gns3/items/node_item.py b/gns3/items/node_item.py
index cac82e70..b4ec7930 100644
--- a/gns3/items/node_item.py
+++ b/gns3/items/node_item.py
@@ -19,7 +19,7 @@
 Graphical representation of a node on the QGraphicsScene.
 """
 
-import sip
+from ..qt import sip
 
 from ..qt import QtCore, QtGui, QtWidgets, QtSvg, qslot
 from ..qt.qimage_svg_renderer import QImageSvgRenderer
diff --git a/gns3/link.py b/gns3/link.py
index 1cd634c0..323823b1 100644
--- a/gns3/link.py
+++ b/gns3/link.py
@@ -21,7 +21,7 @@ Manages and stores everything needed for a connection between 2 devices.
 
 import os
 import re
-import sip
+from .qt import sip
 import uuid
 
 from .qt import QtCore, QtWidgets
diff --git a/gns3/nodes_view.py b/gns3/nodes_view.py
index 463a63fe..16f51ed4 100644
--- a/gns3/nodes_view.py
+++ b/gns3/nodes_view.py
@@ -22,7 +22,7 @@ on the QGraphics scene.
 
 import tempfile
 import json
-import sip
+from .qt import sip
 
 from .qt import QtCore, QtGui, QtWidgets, qpartial
 from .modules import MODULES
diff --git a/gns3/ports/port.py b/gns3/ports/port.py
index 66776a33..3425df0a 100644
--- a/gns3/ports/port.py
+++ b/gns3/ports/port.py
@@ -19,7 +19,7 @@
 Base class for port objects.
 """
 
-import sip
+from ..qt import sip
 
 from ..qt import qslot
 
diff --git a/gns3/progress.py b/gns3/progress.py
index 4f167bbd..33135513 100644
--- a/gns3/progress.py
+++ b/gns3/progress.py
@@ -15,7 +15,7 @@
 # You should have received a copy of the GNU General Public License
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
-import sip
+from .qt import sip
 import time
 from contextlib import contextmanager
 
diff --git a/gns3/qt/__init__.py b/gns3/qt/__init__.py
index b8d9550e..ae88c4bf 100644
--- a/gns3/qt/__init__.py
+++ b/gns3/qt/__init__.py
@@ -24,7 +24,6 @@ Compatibility layer for Qt bindings, so it is easier to switch to PySide if need
 
 
 import sys
-import sip
 import os
 import re
 import inspect
@@ -33,12 +32,17 @@ import functools
 import logging
 log = logging.getLogger("qt/__init__.py")
 
+try:
+    import sip
+except ImportError:
+    from PyQt5 import sip
 from PyQt5 import QtCore, QtGui, QtNetwork, QtWidgets, Qt
 sys.modules[__name__ + '.QtCore'] = QtCore
 sys.modules[__name__ + '.QtGui'] = QtGui
 sys.modules[__name__ + '.QtNetwork'] = QtNetwork
 sys.modules[__name__ + '.QtWidgets'] = QtWidgets
 sys.modules[__name__ + '.Qt'] = Qt
+sys.modules[__name__ + '.sip'] = sip
 
 try:
     from PyQt5 import QtSvg
diff --git a/gns3/utils/progress_dialog.py b/gns3/utils/progress_dialog.py
index b6a84af9..9742e1b3 100644
--- a/gns3/utils/progress_dialog.py
+++ b/gns3/utils/progress_dialog.py
@@ -19,7 +19,7 @@
 Progress dialog that blocking tasks (file operations, network connections etc.)
 """
 
-import sip
+from ..qt import sip
 from gns3.version import __version__
 from ..qt import QtWidgets, QtCore, qslot
 
diff --git a/gns3/utils/wait_for_lambda_worker.py b/gns3/utils/wait_for_lambda_worker.py
index 78a5207a..d24a3cb0 100644
--- a/gns3/utils/wait_for_lambda_worker.py
+++ b/gns3/utils/wait_for_lambda_worker.py
@@ -19,7 +19,7 @@
 Thread showing a progress dialog and running the code from a lambda
 """
 
-import sip
+from ..qt import sip
 
 from ..qt import QtCore