diff --git a/gns3/main.py b/gns3/main.py
index 14322bc6..bb9bb3fb 100644
--- a/gns3/main.py
+++ b/gns3/main.py
@@ -37,7 +37,7 @@ import argparse
 try:
     from gns3.qt import QtCore, QtGui, QtWidgets, DEFAULT_BINDING
 except ImportError:
-    raise RuntimeError("Can't import Qt modules: Qt and/or PyQt is probably not installed correctly...")
+    raise SystemExit("Can't import Qt modules: Qt and/or PyQt is probably not installed correctly...")
 from gns3.main_window import MainWindow
 
 from gns3.logger import init_logger
@@ -142,20 +142,20 @@ def main():
 
     # we only support Python 3 version >= 3.4
     if sys.version_info < (3, 4):
-        raise RuntimeError("Python 3.4 or higher is required")
+        raise SystemExit("Python 3.4 or higher is required")
 
     def version(version_string):
         return [int(i) for i in version_string.split('.')]
 
     if version(QtCore.QT_VERSION_STR) < version("4.6"):
-        raise RuntimeError("Requirement is Qt version 4.6 or higher, got version {}".format(QtCore.QT_VERSION_STR))
+        raise SystemExit("Requirement is Qt version 4.6 or higher, got version {}".format(QtCore.QT_VERSION_STR))
 
     # 4.8.3 because of QSettings (http://pyqt.sourceforge.net/Docs/PyQt4/pyqt_qsettings.html)
     if DEFAULT_BINDING == "PyQt4" and version(QtCore.BINDING_VERSION_STR) < version("4.8.3"):
-        raise RuntimeError("Requirement is PyQt version 4.8.3 or higher, got version {}".format(QtCore.BINDING_VERSION_STR))
+        raise SystemExit("Requirement is PyQt version 4.8.3 or higher, got version {}".format(QtCore.BINDING_VERSION_STR))
 
     if DEFAULT_BINDING == "PyQt5" and version(QtCore.BINDING_VERSION_STR) < version("5.0.0"):
-        raise RuntimeError("Requirement is PyQt5 version 5.0.0 or higher, got version {}".format(QtCore.BINDING_VERSION_STR))
+        raise SystemExit("Requirement is PyQt5 version 5.0.0 or higher, got version {}".format(QtCore.BINDING_VERSION_STR))
 
     # check for the correct locale
     # (UNIX/Linux only)
@@ -177,7 +177,7 @@ def main():
             import win32con
             import win32gui
         except ImportError:
-            raise RuntimeError("Python for Windows extensions must be installed.")
+            raise SystemExit("Python for Windows extensions must be installed.")
 
         if not options.debug:
             try:
diff --git a/gns3/qt.py b/gns3/qt.py
index fb10609d..f44d0d25 100644
--- a/gns3/qt.py
+++ b/gns3/qt.py
@@ -55,7 +55,7 @@ if DEFAULT_BINDING == 'PyQt5':
         from PyQt5 import QtSvg
         sys.modules[__name__ + '.QtSvg'] = QtSvg
     except ImportError:
-        raise RuntimeError("Please install the PyQt5.QtSvg module")
+        raise SystemExit("Please install the PyQt5.QtSvg module")
 
     try:
         from PyQt5 import QtWebKit
diff --git a/scripts/build_pyqt.py b/scripts/build_pyqt.py
index 26d608e1..354c2787 100755
--- a/scripts/build_pyqt.py
+++ b/scripts/build_pyqt.py
@@ -113,7 +113,7 @@ def recursive(function, path):
 if __name__ == '__main__':
 
     if not PYUIC or not PYRCC:
-        raise RuntimeError("pyuic5 or pyrcc5 could't be found, please install PyQt5 development tools (e.g. pyqt5-dev-tools)")
+        raise SystemExit("pyuic5 or pyrcc5 could't be found, please install PyQt5 development tools (e.g. pyqt5-dev-tools)")
 
     cwd = os.path.dirname(os.path.abspath(__file__))
     gns3_path = os.path.abspath(os.path.join(cwd, "../gns3/"))
diff --git a/setup.py b/setup.py
index ade70f09..fe07b476 100644
--- a/setup.py
+++ b/setup.py
@@ -21,7 +21,8 @@ from setuptools.command.test import test as TestCommand
 
 # we only support Python 3 version >= 3.4
 if sys.version_info < (3, 4):
-    raise RuntimeError("Python 3.4 or higher is required")
+    raise SystemExit("Python 3.4 or higher is required")
+
 
 class Tox(TestCommand):