diff --git a/openlp/core/ui/servicemanager.py b/openlp/core/ui/servicemanager.py
index b96e47f97..8e6b1331e 100644
--- a/openlp/core/ui/servicemanager.py
+++ b/openlp/core/ui/servicemanager.py
@@ -570,6 +570,8 @@ class ServiceManager(QtGui.QWidget):
         self.service_theme = unicode(self.ThemeComboBox.currentText())
         self.parent.RenderManager.set_service_theme(self.service_theme)
         self.config.set_config(u'service theme', self.service_theme)
+        #force reset of renderer.
+        self.parent.RenderManager.themesata = None
         self.regenerateServiceItems()
 
     def regenerateServiceItems(self):