diff --git a/openlp/core/lib/renderer.py b/openlp/core/lib/renderer.py
index 71670ff21..02f6970ac 100644
--- a/openlp/core/lib/renderer.py
+++ b/openlp/core/lib/renderer.py
@@ -57,14 +57,14 @@ class Renderer(object):
 
     def __init__(self, imageManager, themeManager):
         """
-        Initialise the render manager.
+        Initialise the renderer.
 
     ``imageManager``
-        A ImageManager instance which takes care of e. g. caching and resizing
+        A imageManager instance which takes care of e. g. caching and resizing
         images.
 
     ``themeManager``
-        The ThemeManager instance, used to get the current theme details.
+        The themeManager instance, used to get the current theme details.
         """
         log.debug(u'Initialisation started')
         self.themeManager = themeManager
@@ -81,7 +81,7 @@ class Renderer(object):
 
     def update_display(self):
         """
-        Updates the render manager's information about the current screen.
+        Updates the renderer's information about the current screen.
         """
         log.debug(u'Update Display')
         self._calculate_default()
diff --git a/openlp/core/lib/serviceitem.py b/openlp/core/lib/serviceitem.py
index 6dff9f6ab..0eb0c866f 100644
--- a/openlp/core/lib/serviceitem.py
+++ b/openlp/core/lib/serviceitem.py
@@ -159,8 +159,8 @@ class ServiceItem(object):
     def render(self, use_override=False):
         """
         The render method is what generates the frames for the screen and
-        obtains the display information from the renderemanager. At this point
-        all the slides are built for the given display size.
+        obtains the display information from the renderer. At this point all
+        slides are built for the given display size.
         """
         log.debug(u'Render called')
         self._display_frames = []