diff --git a/tests/functional/__init__.py b/tests/functional/__init__.py
index e0da50eb3..0b5157b46 100644
--- a/tests/functional/__init__.py
+++ b/tests/functional/__init__.py
@@ -5,4 +5,9 @@ sip.setapi(u'QString', 2)
 sip.setapi(u'QTextStream', 2)
 sip.setapi(u'QTime', 2)
 sip.setapi(u'QUrl', 2)
-sip.setapi(u'QVariant', 2)
\ No newline at end of file
+sip.setapi(u'QVariant', 2)
+
+from PyQt4 import QtGui
+
+# Only one QApplication can be created. Use QtGui.QApplication.instance() when you need to "create" a  QApplication.
+application = QtGui.QApplication([])
diff --git a/tests/functional/openlp_core_lib/test_image_manager.py b/tests/functional/openlp_core_lib/test_image_manager.py
index 10402a808..3256ef86f 100644
--- a/tests/functional/openlp_core_lib/test_image_manager.py
+++ b/tests/functional/openlp_core_lib/test_image_manager.py
@@ -20,10 +20,16 @@ class TestImageManager(TestCase):
         Create the UI
         """
         Registry.create()
-        self.app = QtGui.QApplication([])
+        self.app = QtGui.QApplication.instance()
         ScreenList.create(self.app.desktop())
         self.image_manager = ImageManager()
 
+    def tearDown(self):
+        """
+        Delete all the C++ objects at the end so that we don't have a segfault
+        """
+        del self.app
+
     def basic_image_manager_test(self):
         """
         Test the Image Manager setup basic functionality
diff --git a/tests/functional/openlp_core_lib/test_screen.py b/tests/functional/openlp_core_lib/test_screen.py
index 0b708dd94..8f6631043 100644
--- a/tests/functional/openlp_core_lib/test_screen.py
+++ b/tests/functional/openlp_core_lib/test_screen.py
@@ -19,6 +19,11 @@ class TestScreenList(TestCase):
         self.application = QtGui.QApplication.instance()
         self.screens = ScreenList.create(self.application.desktop())
 
+    def tearDown(self):
+        """
+        """
+        del self.application
+
     def add_desktop_test(self):
         """
         Test to check if new monitors are detected by OpenLP (= plugged in while OpenLP is running).
diff --git a/tests/interfaces/openlp_core_ui/test_filerenamedialog.py b/tests/interfaces/openlp_core_ui/test_filerenamedialog.py
index 74fe83b26..941b1485a 100644
--- a/tests/interfaces/openlp_core_ui/test_filerenamedialog.py
+++ b/tests/interfaces/openlp_core_ui/test_filerenamedialog.py
@@ -15,7 +15,7 @@ class TestStartFileRenameForm(TestCase):
         Create the UI
         """
         registry = Registry.create()
-        self.app = QtGui.QApplication([])
+        self.app = QtGui.QApplication.instance()
         self.main_window = QtGui.QMainWindow()
         Registry().register(u'main_window', self.main_window)
         self.form = filerenameform.FileRenameForm()
diff --git a/tests/interfaces/openlp_core_ui/test_servicemanager.py b/tests/interfaces/openlp_core_ui/test_servicemanager.py
index bb62bd6e6..e06edd4a6 100644
--- a/tests/interfaces/openlp_core_ui/test_servicemanager.py
+++ b/tests/interfaces/openlp_core_ui/test_servicemanager.py
@@ -18,7 +18,7 @@ class TestStartNoteDialog(TestCase):
         Create the UI
         """
         Registry.create()
-        self.app = QtGui.QApplication([])
+        self.app = QtGui.QApplication.instance()
         ScreenList.create(self.app.desktop())
         Registry().register(u'application', MagicMock())
         self.main_window = MainWindow()
diff --git a/tests/interfaces/openlp_core_ui/test_servicenotedialog.py b/tests/interfaces/openlp_core_ui/test_servicenotedialog.py
index 1cf3fef38..ee0f842bd 100644
--- a/tests/interfaces/openlp_core_ui/test_servicenotedialog.py
+++ b/tests/interfaces/openlp_core_ui/test_servicenotedialog.py
@@ -17,7 +17,7 @@ class TestStartNoteDialog(TestCase):
         Create the UI
         """
         Registry.create()
-        self.app = QtGui.QApplication([])
+        self.app = QtGui.QApplication.instance()
         self.main_window = QtGui.QMainWindow()
         Registry().register(u'main_window', self.main_window)
         self.form = servicenoteform.ServiceNoteForm()
@@ -66,4 +66,4 @@ class TestStartNoteDialog(TestCase):
         QtTest.QTest.mouseClick(okWidget, QtCore.Qt.LeftButton)
 
         # THEN the following text is returned
-        self.assertEqual(self.form.text_edit.toPlainText(), text, u'The new text should be returned')
\ No newline at end of file
+        self.assertEqual(self.form.text_edit.toPlainText(), text, u'The new text should be returned')
diff --git a/tests/interfaces/openlp_core_ui/test_starttimedialog.py b/tests/interfaces/openlp_core_ui/test_starttimedialog.py
index 888402235..c09426a1f 100644
--- a/tests/interfaces/openlp_core_ui/test_starttimedialog.py
+++ b/tests/interfaces/openlp_core_ui/test_starttimedialog.py
@@ -17,7 +17,7 @@ class TestStartTimeDialog(TestCase):
         Create the UI
         """
         Registry.create()
-        self.app = QtGui.QApplication([])
+        self.app = QtGui.QApplication.instance()
         self.main_window = QtGui.QMainWindow()
         Registry().register(u'main_window', self.main_window)
         self.form = starttimeform.StartTimeForm()
@@ -93,4 +93,4 @@ class TestStartTimeDialog(TestCase):
         self.assertEqual(self.form.hourSpinBox.value(), 0)
         self.assertEqual(self.form.minuteSpinBox.value(), 2)
         self.assertEqual(self.form.secondSpinBox.value(), 3)
-        self.assertEqual(self.form.item[u'service_item'].start_time, 123, u'The start time should have changed')
\ No newline at end of file
+        self.assertEqual(self.form.item[u'service_item'].start_time, 123, u'The start time should have changed')