diff --git a/powerline/renderers/ipython.py b/powerline/renderers/ipython.py
index a2c071cc..cf31e119 100644
--- a/powerline/renderers/ipython.py
+++ b/powerline/renderers/ipython.py
@@ -21,7 +21,7 @@ class IpythonRenderer(ShellRenderer):
 			except KeyError:
 				match['theme'] = Theme(
 					theme_config=match['config'],
-					top_theme_config=self.theme_config,
+					main_theme_config=self.theme_config,
 					**self.theme_kwargs
 				)
 				return match['theme']
diff --git a/powerline/renderers/vim.py b/powerline/renderers/vim.py
index 28ff2202..f4c2bf74 100644
--- a/powerline/renderers/vim.py
+++ b/powerline/renderers/vim.py
@@ -57,7 +57,7 @@ class VimRenderer(Renderer):
 		try:
 			return match['theme']
 		except KeyError:
-			match['theme'] = Theme(theme_config=match['config'], top_theme_config=self.theme_config, **self.theme_kwargs)
+			match['theme'] = Theme(theme_config=match['config'], main_theme_config=self.theme_config, **self.theme_kwargs)
 			return match['theme']
 
 	def get_theme(self, matcher_info):
diff --git a/powerline/renderers/zsh_prompt.py b/powerline/renderers/zsh_prompt.py
index fcbe3e1c..683d2364 100644
--- a/powerline/renderers/zsh_prompt.py
+++ b/powerline/renderers/zsh_prompt.py
@@ -51,7 +51,7 @@ class ZshPromptRenderer(ShellRenderer):
 		except KeyError:
 			match['theme'] = Theme(
 				theme_config=match['config'],
-				top_theme_config=self.theme_config,
+				main_theme_config=self.theme_config,
 				**self.theme_kwargs
 			)
 			return match['theme']
diff --git a/powerline/theme.py b/powerline/theme.py
index 9c61ddc7..dbb4f3f5 100644
--- a/powerline/theme.py
+++ b/powerline/theme.py
@@ -28,7 +28,7 @@ class Theme(object):
 				theme_config,
 				common_config,
 				pl,
-				top_theme_config=None,
+				main_theme_config=None,
 				run_once=False,
 				shutdown_event=None):
 		self.dividers = theme_config['dividers']
@@ -45,8 +45,8 @@ class Theme(object):
 		}
 		self.pl = pl
 		theme_configs = [theme_config]
-		if top_theme_config:
-			theme_configs.append(top_theme_config)
+		if main_theme_config:
+			theme_configs.append(main_theme_config)
 		get_segment = gen_segment_getter(pl, ext, common_config, theme_configs, theme_config.get('default_module'))
 		for segdict in itertools.chain((theme_config['segments'],),
 										theme_config['segments'].get('above', ())):